Jeff at Modern Cylinder Head has a great CNC porting progra for the -1 heads and he is good to work with.

His 345cc CNC port job made 955hp on my 557ci Kieth Black motor.

He will also correct Indy's mistakes...

Good luck,

Arnie


67 Cuda 8.48@ 158.7 mph 1.18 60' 2,600 DA(so far...) 70 Super Bee 440 Six Pack 4-speed. 13.2 @ 104 Stock exhaust/Street tires.