408 Cam on the way

lead69 said
That's much closer to a comp xe274 if it was on a 108 ls (stock is 110),the thumpr has a bunch more exhaust duration and a 107 ls.

I don't call 5* exhaust duration a "bunch" of difference. Also the Oregon grind he has chosen is on a 108, only 1* more than the Thumpr he compared it too. I think it's pretty close.