The Hyperfuel™ line of fuel injection ready direct replacement tanks feature internal baffling with extra large 4.8 liter dual tube baffled fuel tray to prevent fuel pump starvation. Stamped steel reproductions of the original fuel tank require no modifications to mount. The tanks include a quality 5-hole design 73-10 Ohms sending unit for your fuel gauge and a 340 L/PH high quality fuel pump, longer mounting straps, and filler neck. Sender and fuel pump are recessed in the tank for easy installation. Supporting up to 800hp on pump gas and 600hp with E85 with a Tight-Fit 340 L/PH in-tank EFI fuel pump (Part No. 40016). An in-tank fuel pump is the best method of fuel delivery because the pump is submerged in the fuel which keeps it cooler, provides longer life, and is nearly silent. While primarily intended as an EFI retro-fit system, these tanks can also be used on carbureted engines as long as a quality fuel pressure regulator is utilized to reduce the fuel pressure to the carburetor. These systems have external -6 ORB outlet, return and vent ports for easy fuel line connection.