You might want to check the bottom of the boat to make sure it's straight. From the transom to about 6 ft. up. Also I agree with the more power thing. I bet over 70 it would smooth out.:evilb:

Storm, the shafts are about 4" below the hull and Jo said that is about right.

It does get better the faster you go. I just need to get a 40-50 mph cruise without the crazy porpois and not have to use any trim and alot of tab. I don't like the stuck in the water feeling.

My boat was thw same way and it sucked to get on plane too. It also felt like i was draging an anchor but I tried some props and that was it.There was a set of 17x24 four blades on here in the swap shop that might be the ticket.

I will check for those props or if you know where they are let me know. I checked on a few that I found on here and they were all sold.