I have a 200 271 fastech turning 30 pitch bravo1 prop @ 5200 @78 gps. Also have a 1" imco shorty. The boat runs flat on the water I can not seem to get any bow lift. Anyone else have this problem? Any suggestions?

the imco is doing it,you trim out and the prop blows out..their is nothing left in the water for leverage,, bigger diameter prop may give you some...labbing your prop and adding cup could do wonders..

what size motor and how much h.p.?

I thought the imco maybe doing it, but the guy I bought it from swore that hea picked up 4-5 mph with the imco. BBlades has my prop now said he should be able to get my slipage numbers down to 14%, that would be great.

Engine is a 540ci 670hp @5200rpm