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Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Engine> carb tuning
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Topic Review (Newest First)
10-07-2002 05:41 AM
johnsongrass1 I run onto the same problem with my cam of 318 deg. Had to drill holes in the butterflies to correct it.
10-05-2002 06:31 AM
possum Thanks, but i have alrealdy done this.
10-05-2002 02:19 AM
roys63 You can try to fine some lighter springs for the metering rods, i don't think they are pulling down to shut the fuel off, you can move the covers to the side and push them down with motor running to see if this is the problem.
10-04-2002 09:55 PM
carb tuning

Need advice on tuning 600 edelbrock carb- Have a 360 with 290 dur .500 lift, and performer rpm -around 10inHg at idle. Problem is that i have to set the throttle plates at such an angle for idle that they are clear past idle curb discharge and transfer slots. It will idle but the idle air screws have no effect on idle a/fr - and will somtimes pull fuel from boosters causing a fast idle effect. I have heard of drilling small holes near idle air dicharge -- to allow for more air and less throttle plate angle. I would think this would still pull fuel from the boosters to some effect. I have run mainly 4 corner idle holleys in the past and have not had so much trouble due to the fact you can adjust the rear throttle plate position too. Any info on modifying the idle circut would be a big help.

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