What can I expect out of the Edelbrock springs that came with these heads? Are they a good quality for this application, or should I consider changing them out to something else?
Thanks, Mark
I have a customer with a 446 I built in 2005 running that cam with RPM heads, who has been enjoying his car on the street and strip since then....... Still has the original springs that came on the heads .
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
