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  •  » FYI Ford, Classic Mustang Tech Discussion
  •  » Holley 600 vs 750. Ever noticed?

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    8/24/2021 11:48 AM  #1

    MS
    Forum Originator

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    From: Canyon Lake, Texas
    Registered: 1/24/2013
    Posts: 12,256

    Holley 600 vs 750. Ever noticed?

    The baseplate and butterflies are identical on both carbs?

    I just measured both and throttle plates are same.

    Can anyone verify?

    Money you enjoy wasting is NOT wasted money... unless your wife finds out.
     

    8/24/2021 12:15 PM  #2

    Rudi
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    From: Stuck in the 50's Welland Ca
    Registered: 4/01/2013
    Posts: 3,975

    Re: Holley 600 vs 750. Ever noticed?

    Not my measurements but Holley web site says throttle bore size is  1.563” for the 600-4160 and 1.688” for the 750-4160.

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

    8/24/2021 4:11 PM  #3

    6sally6
    Hyper FYIFORD ADDICT

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    From: Surfside Beach,SC
    Registered: 4/02/2013
    Posts: 6,852

    Re: Holley 600 vs 750. Ever noticed?

    MS wrote:

    The baseplate and butterflies are identical on both carbs?

    I just measured both and throttle plates are same.

    Can anyone verify?

    Sounds like you mighta-got......'who-dude'!
    6sal6
     

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

    8/24/2021 5:16 PM  #4

    MS
    Forum Originator

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    From: Canyon Lake, Texas
    Registered: 1/24/2013
    Posts: 12,256

    Re: Holley 600 vs 750. Ever noticed?

    They were both the 1.56 size.  Turns out the “750” was actually a 670.   They must be same size as 600.

    Anybody need a 670?  It is a 670 Avenger.

    Money you enjoy wasting is NOT wasted money... unless your wife finds out.
       •Thread Starter
     

    8/24/2021 6:07 PM  #5

    Rudi
    Senior 24-7 FYI Addict

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    From: Stuck in the 50's Welland Ca
    Registered: 4/01/2013
    Posts: 3,975

    Re: Holley 600 vs 750. Ever noticed?

    670 Avenger, good carb, my 31 really likes it!

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

    8/24/2021 7:24 PM  #6

    Nos681
    Senior 24-7 FYI Addict

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    From: Atlantic Mine, Michigan
    Registered: 7/14/2016
    Posts: 3,332

    Re: Holley 600 vs 750. Ever noticed?

    This might help ya Steve.

    Don’t believe factory carbs are listed.

    https://documents.holley.com/techlibrary_carb_numerical_listing.pdf

     

    8/24/2021 7:54 PM  #7

    BILLY WALTON from GEORGIA
    Carrollton, GA Bash Host

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

    Re: Holley 600 vs 750. Ever noticed?

    I have a 570 avenger on my 66.

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

    8/24/2021 11:53 PM  #8

    rpm
    Senior 24-7 FYI Addict

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    From: Bakersfield, Ca
    Registered: 9/17/2013
    Posts: 3,656

    Re: Holley 600 vs 750. Ever noticed?

    BILLY WALTON from GEORGIA wrote:

    I have a 570 avenger on my 66.

    How's it run Billy?
    Kidding... sorry

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

     

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  •  »  Holley 600 vs 750. Ever noticed?

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