The PTL 220CC alumin heads although very good out of the box, needed a lil attention to get 570 HP from 383 CID. we worked on the exhaust side of the heads and some minor cleanup on the intake side as well.
Gathering up parts to drop a SBC (383) in a fox body Mustang, I ordered a PA Racing #1191 K-member No motor mounts or spring perches to use the motor plates and to insure plenty of header and oil pan clearance. The car itself is a former V-6 powered 84 Notchback Mustang LX more pics and progress to come...