[applebmw]

My 496, with new extreme energy cam, and aluminum heads, holley 750, falls on its face when I tromp it, about 3rd gear, its like the gas shut off, if I let up on throttle, it comes right back...around 4000 rpm, it revs past 4000 in 1st and 2nd, Any idea's anyone? I have Holley sniper to install, but want to be sure everything is right beforehand