[kkosche]

Best I can tell here are the cam specs.

COMP Cams grind No. FF-4420-4132-R108, 256/262 degrees duration at 0.050-inch tappet rise. When combined with the 1.73 ratio of the P51 rockers, the cam delivers a whopping 0.761/0.743-inch lift.

The owner who had the motor built found the drivability . . . . a bit difficult with a single plane manifold (came with the car) . . so there is some form of dual plane on it now. Most likely that manifold is costing some serious power . . but it has decent drivability.

Seems like a more reasonable approach would be a hydraulic roller cam, Torker II that is ported to match the P51 heads.

I welcome comments / suggestions.

In the mean time, I am going to tune what is there for Sea Level . . and do some research.