Fuel Cell Pump Module Assembly 12 Bolt Flange with VR Series Brushless Fuel Pump Street/strip CARB or EFI Applications Supports Up to 4400 EFI or 4800 CARB HP Compatible with Pump Gas, Race Gas, Methanol and E85 HolleyHolley Fuel Cell EFI Pump Modules with dual Vr Series Brushless Fuel Pumps. These drop in modules come with two controllers and harnesses to give you Vr fuel pump power inside your fuel cell. While the name includes EFI, these modules can be used as an upgrade for carbureted systems as well with the proper regulator. The modules were designed to drop in as a direct replacement for your existing 12 bolt flange fuel cell cap assembly. The billet top