[Formulajones]

Originally Posted by TransAm 474

Thanks Stan, while the Intake Centerline is 1 degree more Advanced than Harold usually recommends on the VooDoo's (ours 103° vs Harold's recommend 104°), the relation of Intake-Exhaust tappet lift at TDC seems to be right in the sweet spot however, at the 103° that is installed at, the Intake is lifted .093" and the exhaust is lifted .0612", having the Intake lobe lifted .0318" higher than the exhaust. Harold always said that he likes to see the Intake lobe .025"-.040" higher than the Exhaust lobe at TDC. When installed at 105°, the Intake was lifted .089" and the exhaust was lifted .067", having the Intake lifted only .022" higher than the exhaust.

I'd leave it at 103. The intake lifter rise is right in the money spot and that's the most important thing. Where the ICL ends up to get it there is less important. The ICL that Harold recommends with each camshaft is a number that should get you right in the ball park for the lifter rise that he likes to see with his camshafts, but as you found out, you may have to fudge that number a pinch one way or the other to get the lifter rise you want.