from what i see stock 260 hp small blocks with twin turbos it is suppose to do 73 but i only got it up to 50 and bailey heard the turbos, it war running 6000 rpms and ate up 41 gal of gas in just under 3 hours. run time blows oil, and i could not trim the motors as trim indicators are bad and one pump is super slow. needs work has stock quadrajet carbs and points ignition definitely needs up grades i think its taking too much fuel for where i went on the pond but who knows.. time to learn some.. i would also think i could run on only one motor but it wont plane out or go for crap. havve some shift cable rubbers to replace who knows just picked it up friday. and go to go for a boat ride for the 4th