The fuel system for your LS swap can be as pricey or low-buck as you want it to be. If you're at 500 or less horsepower, then this is the hot ticket for feeding your newly installed LS engine. The tank is from Rock Auto (PN GM32AFI) and has been retrofitted for EFI duty complete with the sender and GM pump. At well under $500, it's a "no brainer" if you need a direct fit, baffled tank. The other wallet-friendly part of our duo is this combination fuel filter and regulator from a C5 Corvette (GM PN 10299146). It's not adjustable, but it's inexpensive and is perfect if you're pinching pennies. If you want something that can handle more power, is a custom size, or just looks a whole lot nicer, then a company like Detroit Speed Inc. can sell you a sweet stainless tank ready to rock the EFI.