that sure is a really nice calculator! thanks man . I guess im going with 660cc injectors at least thats what it says I should go with if I want 400 crank horsepower and duty cycle @ 50%. With 450's the injectors would be at 75% which I would rather stay away from.

SHmoo, what is your injector duty cycle at right now? What size are they?

What is my fuel pressure at the rail? I thought it was 42psi from Honda? In the calculator it says 175psi?