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jcarey8 Oct 3rd, 04, 9:08 PM when i start my 72 chevelle, it emidently starts reving way to high! i dont ahve a tack so i dont know exactly wht it is, but after a few pressing of the gas pedal it jumps back down and is nice and quiet. Ive tried screwing aorund with the idle screw but cant figure it out. anyone ever heard of this, or ahve an answer? thanks thunderstruck507 Oct 3rd, 04, 10:09 PM something in the throttle linkiage might be barely sticking mine does that sometimes sxty9shovel Oct 3rd, 04, 10:10 PM dual thottle return springs..........thats what i did and it stoped...... dirty_dawg Oct 4th, 04, 12:06 AM It's not the auto choke is it? 427L88 Oct 4th, 04, 9:29 AM Does it have a high speed idle cam and screw? Screw it! smile.gif Seriously, watch the linkages when you pump a cold carb. You'll see a cam raise and give a new idle setting. Adjust it down somewhat. | ||