Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Wanting more power.......but not quite sure what I have to start with
View Single Post
  #4 (permalink)  
Old 10-26-2012, 11:54 AM
vinniekq2's Avatar
vinniekq2 vinniekq2 is offline
Registered User
 
Join Date: Jun 2012
Location: BC,Canada
Age: 56
Posts: 7,395
Wiki Edits: 0

Thanks: 291
Thanked 707 Times in 682 Posts
take off the valve covers,borrow a dial indicator if you do not have one. Mount so that you can measure valve lift at the rocker.It sounds like a mild performance street cam. Some of the 383 crate motors were very high in torque and moderate in horse power. Better heads and cam will likely net 75 plus horse power,though its hard to say without knowing exactly what you have.
rolling off on the top end might be not enough fuel for that engine at max RPMs,borrow a fuel pressure guage and run it through the gears and see if pressure drops near the top of the gears
Reply With Quote