Hey, i finallly got my nitro car started it has the pro. 15 and after i took it to a local hoby shop to fix/tune it it started up like it was brand new. but i think i wasted too much gas...I ate about 2 of the traxxas on board tanks,(the one where you put gas not the complete quart) in about 20 minutes or less. is this normal, could it be too rich or what..thanks

sounds pretty normal maybe alittle rich..what is this engine in?if a rustler or something like that the tank is only 75cc doesnt last that long.