For?
Drag racing? All out performance? Road Racing?
For the most gains…TReX, Texas Magic Stick, Futural F14, TSP 233/239, Texs TorquerV3…
Cougarspeeds car was around 380-390 with a 228/230 cam…he then changed his exhaust, tune and went with a TReX and was up ar 430rwhp…