They really are pretty good heads. On Comp Cam's dyno, everyone had to run the RPM heads. The only engine to beat us was 48 ci bigger. He beat us by 1.1 horsepower, 724.5 HP to 723.4 HP.
The Performance Machine dyno sits at 4,700' elevation, so that D.A. is very possible.
The next time I get a big hp/ci motor together, I'll announce it. We'll stand and deliver that baby, heads up, anywhere.
