When building a high horsepower engine the attention should not only be paid for what's under the hood, but also for one of the most crucial systems that feeds the engine its power making juice. If you are serious in achieving high power, a quality fuel pump is one of the most crucial performance enhancers you can get. BLOX Racing 320 fuel pumps are designed as a direct replacement high performance upgrade for fuel systems requiring additional flow for high horsepower naturally aspirated and forced induction engines. BLOX Racing 320 fuel pumps are available in three configurations that cover a wide range of vehicle applications and feature the same dimensions as other pumps referenced as GSS340, GSS341 and GSS342 respectively. It is highly recommended to cross-reference factory fuel pump models in order to confirm the specific type required: Center Inlet, Offset Inlet, Inline Inlet.  Electric, in-tank application, not for external use. For gasoline engines. Not intended for carbureted engines.