Originally Posted By fast68plymouth
Sounds like its time to invest in a degree wheel.

iagree Knowledge is power scope
I use to race a street hemi in NHRA stock, I tested a bunch of different rocker arm sets on my motor at the retainers with the same cam and head using light pressure checking springs, them stupid stock 426 Hemi ductile iron rocker arms varied from .430 lift at the retainer to .520 on the same lobe with the same zero lash setting shock puke
Test, test and test some more thumbs wrench
You really need a decent degree wheel to degree the cam, that can make a hoop of differences on the track and at the engine dyno work scope

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)