Jeff, 2000 lbs.? Doesn't that assume 2 engines and drives (and rigging)? I have got to assume that the 32 does not weigh a ton more than your hull without engines and drives. If it won't run 70 how do (did) they campaign a F1 Boat? Granted, it had no cabin and was probably lighter than a standard boat but still . . . It seems to me that a single 500 HP in a 32 should be very similar in performance to your 288. so it's less expensive, weighs less (a factor when trailering too), has more space for stuff, is easier (and cheaper) to service. And, it's slower, maybe, if you didn't compare it to the twin small blocks. It all depends on the individual buyer's requirements. Twin big blocks would be my preference in this boat. Budgetary considerations might make the single big block a viable alternative however.