Just picked this up off craigslist for $250!! It's been sitting in a garage since the 80's . . . Compression was low in one cylinder. Tore it down, inspected the cylinder . . . everything looked good . . New gasket kit and lots of oil . . . the compression is back to 115 - 120psi in all 6. It's still got the original stickers on the switchboxes and starter from 1978 . . . It weighs in at 340lbs!!!
