Cylinder Head Porting and Power Production

My point was, I think it’s entirely possible those dyno numbers aren’t an accurate representation of what that combo is capable of.

275lbs/hr is enough fuel to make over 600hp.

Looking at a sheet for a 440 with a roller and good heads.
661hp@6000 using 278lbs/hr, bsfc of .438, a/f ratio 13.1