Quote:
Originally Posted by Jay S
I would subtract the .020” for the correct pushrod length with a VPro.
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I've read past posts from you about V-Pros and it looks like you've used them a number of times. Thanks for your input. I would also lean toward subtracting 0.020" from the initial measurement that has the rod bottomed out and the rocker at a good spot, perhaps slightly more to move the rocker to mid-lift in the upper RPM (above 3500) range. Maybe that's getting too picky. My setup will use 0.020" lifter adjustment once the new rod is in place. That'll get the plunger just off the bottom of the lifter. 0.013" - 0.014" approximately, then as RPM increases the plunger will move up to provide full valve lift, duration, and velocity. At least that's the theory.