if you turn more rpm in a lighter boat then there was something amiss in the current setup. you should spin the same rpm in a lighter boat and it should go faster and will be quicker. i would say that you have a 25' boat wit a mild 460 and thats about all you going to get out of it. good luck and have fun most important!
i'm not looking for neck breaking launches,i bought the boat second hand (cheap-real cheap),with a trashed pump,overhauled the pump,put a new intake and carb,all gaskets and bearings in engine,running a weind stealth,barry grant 975cfm carb,ford ms aluminum super cobrajet heads,
crane roller rockers w/girdle(not sure why),.60 over block,comp cam #34-311-4,.542 lift, 286 duration, with hardin logs and msd 6al, shouldn't the motor set up turn more rpm's?? with an a impeller (bronze)???