Roller Cams in Stock Eliminator?

[Bill Diehl]

Originally Posted by Bernie Cunningham

I would like to bring this back up as it's got to be relevant.
Does anybody know what the, before roller, spring pressures were on a Nascar CUP car?

Its irrelevant....they have 6 and 7mm valve stems in the 60 to 70 gram range with a spintron designed valve train with the proper geometry, they use less spring pressure than you would think.

there is a thought ..lower the pressure so you can spend thousands of dollars on spintron testing.......what a concept