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  •  » How do yall figure out what size carb is best for your car?

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    9/12/2024 4:10 PM  #1

    BILLY WALTON from GEORGIA
    Carrollton, GA Bash Host

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    From: CARROLLTON GEORGIA
    Registered: 4/14/2013
    Posts: 2,431

    How do yall figure out what size carb is best for your car?

    A friend sent me this but I got lost on some of the blanks.


    http://www.wallaceracing.com/Calculators.htm

     

    Its really me....I fixed my caps lock .
     

    9/12/2024 8:58 PM  #2

    rpm
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    From: Bakersfield, Ca
    Registered: 9/17/2013
    Posts: 3,599

    Re: How do yall figure out what size carb is best for your car?

    You can't swing a cat and not hit an online carburator size calculator online.

    Bob. 69 Mach 1, 393W, SMOD Toploader, Armstrong  steering, factory AC.
     

    9/12/2024 9:25 PM  #3

    BILLY WALTON from GEORGIA
    Carrollton, GA Bash Host

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    From: CARROLLTON GEORGIA
    Registered: 4/14/2013
    Posts: 2,431

    Re: How do yall figure out what size carb is best for your car?

    I dont have a cat

    Its really me....I fixed my caps lock .
       •Thread Starter
     

    9/13/2024 8:57 AM  #4

    Rudi
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    From: Stuck in the 50's Welland Ca
    Registered: 4/01/2013
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    Re: How do yall figure out what size carb is best for your car?

    BILLY WALTON from GEORGIA wrote:

    I dont have a cat

     
    Did a Haitian eat it🤪

    Good work ain't cheap, Cheap work ain't good!   Simple Man
     

    9/13/2024 9:00 AM  #5

    TKOPerformance
    Hyper FYIFORD ADDICT

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    From: Newark, DE
    Registered: 12/15/2014
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    Re: How do yall figure out what size carb is best for your car?

    Rudi wrote:

    BILLY WALTON from GEORGIA wrote:

    I dont have a cat

     
    Did a Haitian eat it🤪

    HAHAHAHAHAHA!!!!!!!

     

    9/13/2024 1:53 PM  #6

    BILLY WALTON from GEORGIA
    Carrollton, GA Bash Host

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    From: CARROLLTON GEORGIA
    Registered: 4/14/2013
    Posts: 2,431

    Re: How do yall figure out what size carb is best for your car?

    Rudi wrote:

    BILLY WALTON from GEORGIA wrote:

    I dont have a cat

     
    Did a Haitian eat it🤪

    I believe so

    Its really me....I fixed my caps lock .
       •Thread Starter
     

    9/13/2024 2:49 PM  #7

    KeithP
    I FYI 24-7

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    From: Scottsdale, AZ
    Registered: 6/10/2013
    Posts: 375

    Re: How do yall figure out what size carb is best for your car?

    Rudi wrote:

    BILLY WALTON from GEORGIA wrote:

    I dont have a cat

     
    Did a Haitian eat it🤪

    Somebody I worked with 25 years ago knew someone from Haiti. I'm offended by that comment. lol
     

    1966, vert, 347 stroker, T5z, 4 wheel disc, pb, 3.70 LS 9", EPAS
     

    9/13/2024 3:58 PM  #8

    lowercasesteve
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    From: Auburn, Ca
    Registered: 4/01/2013
    Posts: 1,252

    Re: How do yall figure out what size carb is best for your car?

    KeithP wrote:

    Rudi wrote:

    BILLY WALTON from GEORGIA wrote:

    I dont have a cat

     
    Did a Haitian eat it🤪

    Somebody I worked with 25 years ago knew someone from Haiti. I'm offended by that comment. lol
     

    I hope this thread was tounge-in-cheek.

    Original owner - 351w,T-5, 4whl disks, power R&P
     

    9/13/2024 5:33 PM  #9

    6sally6
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    From: Surfside Beach,SC
    Registered: 4/02/2013
    Posts: 6,767

    Re: How do yall figure out what size carb is best for your car?

    Tounge ??! (Welcome to the 6Sally6 speak club)


    6s6
    BILLY............get a 600 CFM  carb and be happy......if you gotta 289...302...5.0...331...347...
    it'll work good on all of them (specially if you street drive it...vacuum secondarys are very forgiving...
    It sux what it needs)
    6s6

    Last edited by 6sally6 (9/13/2024 5:38 PM)

    Get busy Liv'in or get busy Die'n....Host of the 2020 Bash at the Beach/The only Bash that got cancelled  )8
     

    9/13/2024 7:12 PM  #10

    Bullet Bob
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    From: Montrose, Colorado
    Registered: 4/01/2013
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    Re: How do yall figure out what size carb is best for your car?

    I agree with Sal, though if you have a 289/302 (5.0) I'd prolly lean toward a 500 - 550 unless you're planning to race it.  The smaller pot will give better off-idle throttle response and be easier to properly tune for the 300 C.I. engine IMO.  Seems to me that most guys tend to go too big and over-carb. 

    "you get what you pay for, good work isn't cheap, and there are NO free lunches...PERIOD!"
     

    9/13/2024 7:34 PM  #11

    BILLY WALTON from GEORGIA
    Carrollton, GA Bash Host

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    From: CARROLLTON GEORGIA
    Registered: 4/14/2013
    Posts: 2,431

    Re: How do yall figure out what size carb is best for your car?

    Bullet Bob wrote:

    I agree with Sal, though if you have a 289/302 (5.0) I'd prolly lean toward a 500 - 550 unless you're planning to race it.  The smaller pot will give better off-idle throttle response and be easier to properly tune for the 300 C.I. engine IMO.  Seems to me that most guys tend to go too big and over-carb. 

    It has a 570 street avenger on it but we are wondering if it is working properly ....Car seems to just not have the power it should to me....the stock 289 2 bbl that I pulled out 
    seemed to be just as strong

    Its really me....I fixed my caps lock .
       •Thread Starter
     

    9/14/2024 5:13 AM  #12

    Rufus68
    I FYI 24-7

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    From: Knoxville, TN
    Registered: 4/26/2017
    Posts: 868

    Re: How do yall figure out what size carb is best for your car?

    Do you have an AFR gauge on it?  If so, how well tuned is the current carb?  If not, you're just guessing as to what the fuel mixture is in the circuits.

    1968 T-code Coupe with a 302.  Nice car, no show stopper for sure, but I like it.
     

    9/14/2024 5:27 AM  #13

    TKOPerformance
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    From: Newark, DE
    Registered: 12/15/2014
    Posts: 7,427

    Re: How do yall figure out what size carb is best for your car?

    Well sure, because a stock 289 non HiPo was done reving at 5,000RPM.  They were cammed to make peak power at like 4,800.  Its how they had low end torque.  The better cam trades some of that for more RPM and power potential.

    Definitely check to see that the carb is doing its job, but a better question might be what trans is in it and what rear gear does it run?

    Worth mentioning, but what about timing?
     

     

    9/14/2024 8:06 AM  #14

    rpm
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    From: Bakersfield, Ca
    Registered: 9/17/2013
    Posts: 3,599

    Re: How do yall figure out what size carb is best for your car?

    BILLY WALTON from GEORGIA wrote:

    I dont have a cat

     
    Nobody swings their own cat. Ya gotta use a neighbor's.

    Bob. 69 Mach 1, 393W, SMOD Toploader, Armstrong  steering, factory AC.
     

    9/14/2024 3:51 PM  #15

    TKOPerformance
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    From: Newark, DE
    Registered: 12/15/2014
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    Re: How do yall figure out what size carb is best for your car?

    rpm wrote:

    BILLY WALTON from GEORGIA wrote:

    I dont have a cat

     
    Nobody swings their own cat. Ya gotta use a neighbor's.

    I believe its supposed to be dead as well.  Put out some antifreeze. 

     

    9/14/2024 4:15 PM  #16

    50vert
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    From: QLD Australia
    Registered: 4/01/2013
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    Re: How do yall figure out what size carb is best for your car?

    rpm wrote:

    BILLY WALTON from GEORGIA wrote:

    I dont have a cat

     
    Nobody swings their own cat. Ya gotta use a neighbor's.

    My neighbor's don't have cats .... I have Doberman's.

    "Those telephone poles were like a picket fence"
     

    9/14/2024 9:24 PM  #17

    BILLY WALTON from GEORGIA
    Carrollton, GA Bash Host

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    From: CARROLLTON GEORGIA
    Registered: 4/14/2013
    Posts: 2,431

    Re: How do yall figure out what size carb is best for your car?

    TKOPerformance wrote:

    Well sure, because a stock 289 non HiPo was done reving at 5,000RPM.  They were cammed to make peak power at like 4,800.  Its how they had low end torque.  The better cam trades some of that for more RPM and power potential.

    Definitely check to see that the carb is doing its job, but a better question might be what trans is in it and what rear gear does it run?

    Worth mentioning, but what about timing?
     

    has 5 speed and 3:55 gear
     

    Its really me....I fixed my caps lock .
       •Thread Starter
     

    9/15/2024 5:46 AM  #18

    TKOPerformance
    Hyper FYIFORD ADDICT

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    From: Newark, DE
    Registered: 12/15/2014
    Posts: 7,427

    Re: How do yall figure out what size carb is best for your car?

    BILLY WALTON from GEORGIA wrote:

    TKOPerformance wrote:

    Well sure, because a stock 289 non HiPo was done reving at 5,000RPM.  They were cammed to make peak power at like 4,800.  Its how they had low end torque.  The better cam trades some of that for more RPM and power potential.

    Definitely check to see that the carb is doing its job, but a better question might be what trans is in it and what rear gear does it run?

    Worth mentioning, but what about timing?
     

    has 5 speed and 3:55 gear
     

    Which T5?  Z spec or V8 Foxbody? 
     

     

    9/15/2024 12:34 PM  #19

    RV6
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    From: Pine Junction, CO
    Registered: 3/01/2016
    Posts: 1,246

    Re: How do yall figure out what size carb is best for your car?

    BILLY WALTON from GEORGIA wrote:

    Bullet Bob wrote:

    I agree with Sal, though if you have a 289/302 (5.0) I'd prolly lean toward a 500 - 550 unless you're planning to race it.  The smaller pot will give better off-idle throttle response and be easier to properly tune for the 300 C.I. engine IMO.  Seems to me that most guys tend to go too big and over-carb. 

    It has a 570 street avenger on it but we are wondering if it is working properly ....Car seems to just not have the power it should to me....the stock 289 2 bbl that I pulled out 
    seemed to be just as strong

    The 570 SA should be fine. Did you just bolt it on out of the box? If so, tuning is in order.

    Gary Zilik - Pine Junction, Colorado - 67 Coupe, 289-4V, T5
     

    9/15/2024 12:40 PM  #20

    BILLY WALTON from GEORGIA
    Carrollton, GA Bash Host

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    From: CARROLLTON GEORGIA
    Registered: 4/14/2013
    Posts: 2,431

    Re: How do yall figure out what size carb is best for your car?

    TKOPerformance wrote:

    BILLY WALTON from GEORGIA wrote:

    TKOPerformance wrote:

    Well sure, because a stock 289 non HiPo was done reving at 5,000RPM.  They were cammed to make peak power at like 4,800.  Its how they had low end torque.  The better cam trades some of that for more RPM and power potential.

    Definitely check to see that the carb is doing its job, but a better question might be what trans is in it and what rear gear does it run?

    Worth mentioning, but what about timing?
     

    has 5 speed and 3:55 gear
     

    Which T5?  Z spec or V8 Foxbody? 
     

    Upgraded Fox trans using the 068 cluster gear set (350-400 HP), No synchro on rev. Added cluster support plate &, billet 3-4 keys
     

    Its really me....I fixed my caps lock .
       •Thread Starter
     

     

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