This is our dual carb/single carb intake setup capable of 650 horsepower. Since propane is between 103 and 112 octane, you can do away with expensive race gas. When it is done properly, there is no loss of power. This is our specialty! They still idle and drive properly at lower rpm's as well as full throttle. They don't use an accelerator pump so fuel consumption is low when cruising and when hitting the gas repeatedly. Kit is complete except for tank and air filter setup.