Quote: Well my motor is a W2 headed 416. I started out with a 750. Up graded that with a PF base plate. Tried a borrowed 800DP that slowed it down. Borrowed a non HP 950 and it picked up .3 and 3 mph. I now have a PF 950 and it runs the same as the non HP 950 did. A friend has a HP1000 That I hope to try in the future.
It does make a difference in how high you buzz the engine to and what the heads flow... but a good check is to run a vac gauge on the intake to see what the vac is in the intake when you are at WOT... you want very little
