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Re: need help with BBC
On a fresh rebuild and new carb and dizzy. Alot of possibilities, Mine came back from a rebuilder and had a really rough idle, after carb idle adjustments(mixture) and timing set to 12* with no vacuum I went in and adjusted the valves that took what was left of the roughness out. With the 10-1 and the 272 cam it will be lopy at idle but a smooth lope. I was running stock 8.5-1 and a crane 272/284 cam idle was 750rpm to keep it from shaking to bad in drive, Neutral/park idle speed was about 850rpm.
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72 longhorn c30 502BB/th400/fact air/4.11rear/ custom camper
72 bug(the better half's) under reconstruction
2009 HHR aqua blue
71 GMC k20 350/sm465
2009 Chevy hd3500 6.6 Victory Red crew cab dually
Dave & Jeanne
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