[hill67bird]

Originally Posted by ignaro

You might check out FiTech's tripower EFI setup. I remember reading about how much harder it is to get good, even fuel delivery with the tripower setups so this might take some of the hassle out and get you closer to your 600hp goal. FWIW, I'm building a pretty typical 461 (400 stroker) with an Edelbrock RPM intake and the Speedmaster heads and don't expect to hit 600hp, more like 500 and change. Getting 600hp out of a 428 and likely more restrictive intake would be tough.

How do you like the speedmaster heads?