hello. K here out in colorado, just picked up what i think is a 1979 hawaiian jet boat at 27 ft long on a twin axle vanson trailer, boat interior was shot, motor seems ok but won;t start due to dead batteries, will roll over using hole hog drill on crank. very sure it has a big block chevy 454 on a panther jet with place diverter, it has dual sun roofs in the front with a moulded in swim deck on rear of boat. i will post photos as come available, so far, hull is solid and stringers are good, thats all i know, hull was gelcoated gloss black.