ok,i don't know any thing about the 308.Dose any one know what were their hp/tq rates at stock,and what i could put on one to get 350?Thank you for taking the time to read this.

Thanks,
7seconds

308? 308 what? rifle?

im assuming your talkin' about your nova. there is no 308 CI chevy engine. there are 265, 267, 283, 305, 307, 327, 350 and 400 C.I. SBC's.

BTW: there is no way you'll get 350 HP out of it without spending a big chunk of change, that would be better spent on a 350. You could add a bigger cam and an aluminum intake to gain some power. should'nt cost to much if you go through summit racing.

Holden?