Wouldn't matter anyway. Crank horsepower doesn't always translate into ET. I often race a firebird that makes 200 more HP at the wheels than I do and runs 1/2 second slower in the 1/4.
I don't dought it made the power, but OOTB RPM heads? Ummmm, No. They kinda suck OOTB and don't flow anywhere near the 315+ cfm needed to make that kind of power at that rpm for that size engine.