Good cam size for stock 318 bottom on boost

TE=roccodart440;1970346666]
Since you want a flat tappet here are 2 good choices.

CRO-31321

CRN-691191

what's the difference between mechanical and hydraulic flat tappet cam. The two I picked are hydraulic. the two you Picked are mechanical.[/QUOTE]


They are totally different grind specs than the ones you posted. I don't see the point in running a hyd cam.

Summit 6900.

That would do it and go 11.50's no prob and would purr like a kitten!