With those numbers posted, your slip is around 16%. Maybe instead of jumping around in pitch, call up a prop shop like Bblades and talk to them about a 5 blade prop. I know the heats benefit from the extra surface and it solves a lot of problems, maybe a P5X on the Flame will work for you.

Ok i will guve that a shot. But I've heard that they are hard on your drives.

All of the folks I have met personally with high HP Heats (700+hp range) run the P5X. As with any Bravo application behind BBC torque, dont kill it out of the hole and you should be fine.