check out helifreak gasser section. a lot of good info in there on this motor. i cant link it right now, im sorry, HF is down again.....it takes A LOT of modification to get this motor to run properly, and they still are not getting 10 gallons through them before they eat themselves. it is also not fit for a 700, it lacks the guts for a 700. they are best suited for a 550-600 size gasser. mostly a 550.