How well was this port job done? I got these heads used as shown. 915 casting (J) Whats your estimate as to flow or HP capability?


70 Dart Swinger, 2850 lbs
SB 408, Bullet roller 264/268 @50 .636 SSDS stage 2 Edelbrock heads, 1 7/8 Headmans, 1050 dominator by Dom, 9.867 @ 133