The is a direct replacement for the in tank fuel pump. Replace the factory pump, which is rated at 110 Litre Per Hour, with this Walbro 255 Litre Per Hour fuel pump. This pump directly replaces the in tank pump. It includes all necessary parts for the install, Tank Seal for both early and late pump modules, disassembly tool, filter O-ring, lower grommet, outer filter, fuel pump, and instructions. This is for use with high horsepower engines.

To produce one horsepower for one hour requires 0.5 pounds of gasoline. 0.5lbs/hour = 1 hp is the formula. This is Brake Specific Fuel Consumption. If you can't delivery enough fuel to the engine, you can't make the power.