i needa bigger tank cuz im only getting about 10mins run time and i want atleast 15 or 20..im thinking of going with a 6 or 8 oz tank witha aircraft setup..quick fill or pump..but i dont know if the same thing applies to car engines if the tank has to be level with the carb..or if there wont be enuff bacpressure to presurize the tank..but if i do the bumper ill be makin one outtta aluminum or steel.i know a guy who has his own machine shop..right now he is makin me a pair of stee lspur gears anda new steel clutch bell..