Quote:
Originally Posted by andrewb70
I always run close to 14.7:1 at idle, regardless of cam specs. Sometimes even targeting even leaner if the cam has a lot of overlap.
Andrew
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I don't know how big his cam is, but my 540 with 700 lift, 260/270ish duration @.050 was not happy at 14.7:1. It would run, but it picked up vacuum and rpm by richening it into the mid to high 13's. I've always been the "give it what it wants" kind of tuner, right or wrong it works for me.