What I have is a 1983 150 V6 black max on 1983 17ft Winner bass boat.The boat is slow getting on plane,it has no whole shot.But once it gets up on plane it will run like a scalded dog.I have replaced alot of parts trying solve this problem."no luck yet"I have replaced,stator,rectifire,plugs,plugwires, fuelfilter,and cleaned and rebuilt carbs.The moter runs smoother but still slow out the whole.So I am thinking it could be the prop but I don't know the size and it isn,t stamped. The only thing on it is the name "HOOTER"and the numbers 3 93 62 it's a 14in 3 blade stainless. I have had the motor turning 6000rpm easy with this thing. It's fast, scares the hell out of me.Any thoughts would be welcome. Thanks Joe