Jim is correct......... If you're not going to reuse the current SR's and will be buying something new, I'd get -1's over SR's for that application. I'm not sure I'd go for the 345's or not on a 499. I'd probably do 325's with a 2.25 intake valve, along with a Jesel 1.7 rocker set-up.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
