A little bit off topic, but do you think an F1R will make 18psi on a 470? I know boost numbers have a bunch of factors involved but if you have decent flowing heads and intake, 18psi is going to be probably 1100-1200 hp. I've raced several different model Prochargers, including an F1R, for a few years now so if it were me- I'd run copper head gaskets with SS o-rings. Also, get a custom cam - I'd call Bullet and give them every detail. Good choice going with a gear drive. Edit --Nevermind - you didn't actually say SCS geardrive.

Last edited by Runnoft; 11/19/19 06:23 PM.

Cruiser: 66 Dodge Coronet 500, Indy SR 440, Gen 7 Accel EFI = 11.38 @ 116.
Racing: Brand X, X275 Procharged Smallblock on M1, Leafsprings, Holley EFI = 4.30 @ 168