Would it be worth upgrading an old stock 460 or going putting a done up LS motor to make a CVX 20 go faster? My brother in law is inheriting my old boat and wants to go this route to kick the MPH up on it. I get parts would be more available and there would be some weight savings, how easy it would be to make an LS fit is a different story. He's thinking he can get an LS motor to around 6500 as Jets love RPMS. I'm sure it can work at some price I'm just curious as I've always been a believer in big blocks in boats.