I dont know any thing about 4 stroke performance or which one is the fastest but I got a friend who has an old very heavy 19 Mako with a high dollar 130 Honda on it and its VERY heavy and slow.He has a T Top etc and has had to add bennet trim tabs and plug his scuppers as its so *** heavy. With two guys its hard to get up to plane and does not want to hold very well as he is always on the throttle trying to keep it at 3800 or so .At full throttle it is a gas hog but very quiet running.He used to have a nimble little 140 johnson which ran out around 42 but I would doubt if he gets 31 or 32 out of the Honda..I dont think the older boats were designed for such heavy weights and it effects their speed and performance but I could be wrong...I dont think its a horsepower thing...Frank