does a I/O have a thermostat

[smokeonthewater]

the diameter will make very little difference on top end but MAY affect holeshot... I'd drop to a 15x16 or a 4 blade 15 pitch

[roffey]

I like the boat but you sure realize how big it is when you punch it, it takes about 5 min to hit full speed and when on plane and you turn it, it seems to have quite a lean. This boat is a cruiser and is nice running about 10 mph. Having said that, the urge to get up and go is to much for me. I am going to take your advice and see if I can get a better prop. 35-40 would put a smile on my face. ;-)