ok i got a 1997 sylvan 17 pro select with a 1978 merc 1150 il6 how fast should she run at wot ,is 45 to much to hope for?....Have a 17 and 19 pitch al props.....finally got her running good (fuel line problems )but the weather has been #4&*!$ , the rigs weight almost 25oo lbs loaded (fuel...