I have had three of them throughout the years. A stock 502 will run over 70 but not 80. They are built by a guy named Jim Clark in Buford Georgia just outside of Atlanta. They design is almost identical to that of a 24 foot Pantera although I would say the Pantera is built a little better but also a lot more expensive. For someone who wants a no frills lake hot rod, for the money they can't be beat.