I have to disagree, Bill. A 289, dual carbs or not, would make a great anchor but a poor powerplant.

A properly executed 350 chevy, now THAT would scoot a boat right along!

"Forget pounds and ounces, I'm figuring displacement!"

If we accept that: MBG(+)FGSF(=)HBG(F1)
And we surmise that: BG(>)HBG(F1) while GSF(<)HBG(F1)
Would it hold true that: HBG(F1)(+)AM500(x)q.d.(=)1.5lbGRWT?
PB answer: It depends.