Bought 64 comet last year with a late 60's merc 50hp outboard. Had it out last year and again this summer, motor tested great - compresion good, throttle cable positioned well, carbs functioning well - Motor runs great but no matter the trim position i cant seem to get the boat to plane with more than one person in it. Last mechanic i had it to suggested i may have a hull hook. After researching and testing there doesnt seem to be a noticeable hook anywhere. I have seen models with a stern drive but switching isnt really an option. The 50 horse should zip this boat along but cant seem to figure it out. Im pushing water and barely getting 5mph out of it. First time on the forum and any help would be greatly appreciated.