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  •  » FYI Ford, Classic Mustang Tech Discussion
  •  » Edelbrock 600 carburator

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    8/01/2016 9:50 PM  #1

    whitestang
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    Registered: 10/19/2013
    Posts: 27

    Edelbrock 600 carburator

    My 66 coupe has a 5.0 engine with the E303 cam AOD trans with 3.80 diff. The Edelbrock 600 sits on Edelbrock air gap intake. Problem is eng. is prone to stalling almost like idle circut is too lean. The carb is a 1406 with stock jets, idle mixture screws are set for highest vacume 14 inches at 850 rpm. Timing is set at 12 degrees BTDC. Thanks for your help.

     

    8/01/2016 9:58 PM  #2

    6sally6
    Hyper FYIFORD ADDICT

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    From: Surfside Beach,SC
    Registered: 4/02/2013
    Posts: 6,911

    Re: Edelbrock 600 carburator

    Does it "rattle"/spark knock when putting a load on the engine? Hard to start when engine is hot?
    If not....add a few degrees more initial timing and see if that helps.
    6sally6

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

    8/02/2016 9:03 AM  #3

    whitestang
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    Registered: 10/19/2013
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    Re: Edelbrock 600 carburator

    It does not have detonation, when I get to it I will try more initial timing. Thanks

       •Thread Starter
     

    8/02/2016 7:25 PM  #4

    BobE
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    From: White Plains, NY
    Registered: 4/04/2013
    Posts: 2,752

    Re: Edelbrock 600 carburator

    If the idle screws are set to the highest vacuum, you may be right on the edge of stalling.  Try adjusting the idle screws 1/2 turn to richer the mixture, take for a ride and see how it works.  Adjust from there.  Or you could try increasing the idle speed to 900 RPM, see how that works.
    Should have asked this first ... does this happen w/the engine at normal operating temperature?

    65 Fastback, 351W, 5-speed, 4 wheel discs, 9" rear,  R&C Front End.
     

    8/12/2016 10:58 PM  #5

    whitestang
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    Registered: 10/19/2013
    Posts: 27

    Re: Edelbrock 600 carburator

    Thanks BobE the engine will stall both cold and hot. Cold idle is set at about 1200 RPM. I have not worked on it in a while but I think I will take 6Sally6 advice and give it more initial advance.

       •Thread Starter
     

    8/22/2016 9:11 PM  #6

    whitestang
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    Registered: 10/19/2013
    Posts: 27

    Re: Edelbrock 600 carburator

    I reset initial timing at 17 degrees BTDC and adjusted idle mixture screws. Engine idles at 15 inches of vacume at 850 RPM. and no longer stalls.

       •Thread Starter
     

    8/22/2016 11:16 PM  #7

    True74yamaha
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    From: Salt Lake City
    Registered: 5/07/2013
    Posts: 2,537

    Re: Edelbrock 600 carburator

    Did you figure out your problem yet? I know that if the car has a cam and you use an edelbrock you have to usually change the metering rods or the car can sometimes die. Edelbrock also talks about this in the manual.

     

    8/23/2016 9:29 AM  #8

    whitestang
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    Registered: 10/19/2013
    Posts: 27

    Re: Edelbrock 600 carburator

    I have it where it no longer stalls. I do know it is running rich, I think I will buy a calibration kit and attempt to improve it even more.

       •Thread Starter
     

     

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