Not Ranked
I won't give you my "I think," but you may want to reconsider your powerband. My 289 spins up and still pulls nicely to 7,500 RPM. The engine builder says it will take 9k, but I've been too chicken to rev it that far. a 289 is a short stroke engine so spinning it up tight won't hurt it like other 4" bore/longer-stroke engines.
I've got Ford GT40 heads on mine, but I "don't think" they're as good as AFR's, or so I'm told. But as far as dimensions, well, they're Fords own.
Tom
|