Quote Originally Posted by Fast355 View Post
I had a very similar setup in my Express van except it had the L31 Marine intake. Great engine for low-end power but couldn't pass a dump truck on the highway with that cam even with 1.7 rockers. Dumped that cam for the GMPP 357 HP SPO 350 crate engine cam. If you someday decide you want more power the SPO cam is worth about 50-60 HP at redline over the 395' cam with nearly no change in low-end torque. My converter stalled 2,700 rpm with the 395' cam and about 2,800 with the SPO cam. So noticeably more powerful even that low in the RPM range.
50-60hp gain at redline.

Whats your redline set at?

peace
Hog