Overpowered?

[luisp305]

I just purchased a 1970 Seacraft 20' that was completely restored in 2011. This is my first Seacraft. The boat comes with a 2003 Yamaha 250 Saltwater Series II on a 24" bracket, the boat has a closed transom. I would like to know if this boat is overpowered? I noticed that it does sit below the water line but it also had an empty fuel tank. Would filling the tank level the boat out? Would adding weight to the front help? Or should I just sell the motor and downgrade? If I do need to downgrade what motor and hp should I go with?

Thanks,
Luis