Fuel-It! Stage 3 Dual LPFP — B58 / B48 (F-Chassis)
Fuel-It! Stage 3 dual low-pressure fuel pump for the F-chassis B58/B48 — the high-power, E85 answer on the in-tank side. It keeps the factory primary pump (EKP behaves normally) and adds a boost-triggered secondary Walbro.
What it is
A dual-pump kit: the stock LPFP plus a secondary Walbro 450 (525 optional) on a secondary harness, triggered under boost by a Hobbs switch. Fuel-It's guidance: up to about 700 whp on the 450; step to the 525 beyond that.
Where it fits in the build
Low-pressure (in-tank) side; feeds an upgraded high-pressure pump. We tune the engine to the fuel system.
Fitment
Gen1 B58 / B48 (F-chassis) — F22/F23, F30/F31, F32/F33. Confirm your chassis in the selector.
Sourcing fueling with the tune? The Fueling Kit — B58 bundles the matched parts + calibration for 8% under à la carte.






