yeah that's one bad standup, i've spent a little over $5k in the motor and drive line on this ski. it's a factory looking 1989 440 Standup hull but from there it's a 575 bored and stroked motor with 245 compression ea cylinder a true circle 400 crank welded with blue printing and balancing. lightened flywheel MSD ign. lightened drive shaft bored pump with 15/19 vari ss prop, westcoast 6.5 gal tank. twin 44 mm race carbs. 6" exhaust, dual cooling, hp head and machined solid motor mounts with thru hull drive line support. it will GPS out at little over 78 mph in slight chop and 82+ in good to smooth water.
i am currently building it's evil twin with a turbo and twin 46 mm carbs. here's a link to that ski's repair job i had wrecked it bad real bad
http://www.wellcraftv20.com/communit...ead.php?t=7579