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Thread: Demon carb help
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Old 12-17-2011, 03:46 PM
Blown Camaro Blown Camaro is offline
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I tore everything down and check for a vacuum leak. I put the 1" plastic spacers on the formica counter top and they rocked. BINGO! Sanded them flat top and bottom. Next, took the throttle plates off and noticed a different gasket on each carb. One was correct, one was a Holley for two corner idle! Fixed. Cleaned all orifices and found one of the boost referenced power valve fitting had NO flow. Fixed.

Set the idle screws out 2 turns this time and fired it up. HUGE difference and it idled cold just fine. But now it smells rich. I set all four throttle screws at .020" of the transfer slot but it idled at 1500RPM. I am shooting for 1000-1100. Backed the screws down equally and now it has a 500rpm blower roll I do not want. Tried leaning the idle screws all the way to one turn out and it runs great EXCEPT the roll, and in gear it is even worse and undriveable.

Now what?
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