I'm thinking of installing whipples on my 37' A/T with 525's.boat weights 9500 dry.low 80's stock at 5200 rpms.Has anyone install these on a boat of this weight and length and what was your final speed gain.Do the ecu's have to be reprogrammed.I've had too replace the exhaust valves seals already because of the oil it was burning per my merc rep and he says he can recalibrate my ecus to get rid of the souting on the transom should this be done before whipples would be installed or wait to see what it does for fuel pressure.