| Re: Rich As Hell That would be a good place to start. With the motor off, turn the screws all the way in, don't overtighten them. Back them out 2 full turns, that's a good starting point. Get a vacuum gauge, hook it up to manifold vaccum, and start the engine. I usually start with the driver's side screw. Turn it in it little increments and watch the gauge, once you reach the point where you have the most vaccum available before it gets worse if you turn it any more, stop, and give the other screw the same amount of turns.
You'll also have to adjust the idle air screw on the throttle lever, it's a little flathead screw facing the front of the car with the throttle closed. Use the tach to get it at what you want for idle speed, I usually put it at about 800-900 RPMs.
Also when you get it back together, make sure you have the vaccum advance line connected to the right port on the front of the carb. I had to put mine on the passenger side port.
I had the same problem at idle you are describing, turns out my vaccum advance was all over the place when running because I had it hooked up to full vaccum instead of the timed port.
__________________ 1991 Z28 convertible 305 TPI/LT1 cam
1988 TransAm GTA/305 Summit K1103 cam, Edelbrock EPS, Performer carb, T-5, Hedman headers |