Thanks for the input FAST.

We were a little surprised that the engine nosed over so early, but either it ran out of carburetor or the dual plane was not the best pick for the engine.
Forgot to check vacuum at full throttle to see if it was he carb...RATS!

Anyhow, we were pleased at the output, about 40 or 50 above our initial guesses
so after a couple of jetting and timing changes we called it a day.

Torque peaked at 651 @ 4261,
HP 620 @ 5543

Good TQ curve; 621 @ 2821

Does this help?

Joe

PS forgot that these numbers were with the Dyno's 1-3/4" test headers, went to put our 2" headers on and ran into fitment problems with the dyno
so that may account for choking the engine somewhat.