Tried to get some input on the prop section of O.S.O but no replies. I have a 1988 cigarette bullet. Engines just rebuilt .Dyno numbers are 550 hp /555 torq @ 5,200 rpm.My question is what size props should i be running and what kind of top end speed should i expect to get.will be using bravo ones with 1.50 gears

There has been some info on OSO regarding this topic. Check out the below tread and also do a search on topic:

http://www.offshoreonly.com/forums/s...=bullet+speeds

keep us posted on your progress.....got any pics?

My 92 with SC 550HP would run a little over 78 with older style bravo's. Drives were 1:36 can't remeber props. Next owner y put low water pcikups and got it to run about 82.