I actually moved the Crower RAIV cam 4 times and raced the car after each movement.
It ran the best at 109ICL. It ran equally as well at 111ICL for MPH but off every so slightly in 60' times resulting in a couple hundreds worse ET.
Moving it to 113ICL KILLED it, idled rough, "lazy" in the normal driving range, "soft" on 60' times and down 2mph on top end.
Here's the real SHOCKER. Moving it to 107ICL KILLED it even worse. Desptie the fact that everyone regurgitates the "advance the cam for more low end torque" deal, it ran WORSE at 107ICL than at 109 and 111.
Superficially it seemed a little more responsive right off idle and very light throttle driving the car, but a complete TURD at the track with good traction.
Goes back to someone telling us a LONG time ago how sensitive these engines can be to the intake closing point.......FWIW.......
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73 Ventura, SOLD 455, 3740lbs, 11.30's at 120mph, 1977 Pontiac Q-jet, HO intake, HEI, 10" converter, 3.42 gears, DOT's, 7.20's at 96mph and still WAY under the roll bar rule. Best ET to date 7.18 at 97MPH (1/8th mile),
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