I have a 1986 StarCraft SS201. I spent the last year rebuilding the entire boat. Here is the specs. 20'8"long 8' beam, weight with fuel and 2 males one fat one skinny 2600#s 1989 4.3 Mercruiser LX 205hp, Current prop Mercruiser # 48-78122-21 I believe it is 14"X 21P, WOT 4200rpm, Gps speed is...