We are just getting ready to paint what I beleive is a 1971 shell lake boat, which I beleive was made by lund. It is a 14' runabout, fiberglass. It is still new to my buddy and I. We have a 50hp johnson on it and I would guess that it goes about 30mph with the two of us in it. I didnt have the gps to check actual speed the last time we had her out on the lake. Anyway, we are getting ready to paint it and it took 4 of us to roll it over on its top to paint the bottom, it seemed pretty heavy for a 14' boat. I was wondering if it has foam in the bottom and if it is possibly water logged. But my problem is I have no way of telling if there is foam in there because there is no way to see under the floor. There is some foam under the "hood" of the boat in the front and there is also some foam up under the part of the back end where the battery and gas tank go. Does anyone know how to tell if there is foam under the floor. personally I thought it woud go a little faster with a 50hp on a 14' boat.