New rockers...

But, who's gonna clean up the mess when the lifters grind those cam lobes into a basket of iron filings???

You CAN NOT have your cake and eat it, too, in this instance.

The lifter attack angle is too great to have lifts in the .500"-range and over, with short duration like we have to run with a turbo.

It's not a matter of my personal opinion; several cam grinders have told me you just can't do it and have a cam that will live...

Believe me, I tried...:banghead:

im in the same boat bill on a NA motor, 246 @ .050 and only .470 valve lift AFTER lash... i would like 240 @ .050 with .550 AFTER last to take advantage of the lift under the peak.