One of our boating friends has been having problems with his carburetor the past month or so. It is a 2002 in a Maxum. It has the original carburetor, and has been rebuilt a number of times. His mechanic told him he should just replace the carburetor, and he has a Rochester 4 barrel and intake he would put on it for a reasonable price. Tells him it would make his 190 HP a 220 HP engine. Is this true or would other stuff have to be replaced as well; distributor, plugs, etc.? Seems like more than a carburetor and intake would be needed to boost the power that much. Any thoughts are appreciated.