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Regardless of the Engine Transplant, Howell has You Covered

Currently Howell EFI offers wide-ranging GM-style EFI conversions for many applications and harness conversions for any GM V6 and V8 engine from 1985 to present. For anyone not doing a complete carbureted to fuel injection conversion, we also cover the transplant segment with 30+ years of vehicle applications.

As an adjunct to our wiring harnesses, we developed complete throttle body and multi-port fuel injection systems. We combine proven GM electronic components, Howell wiring harnesses, two and four-barrel TBI and TPI units. These systems offer GM closed-loop fuel and spark control, and typical GM durability and fuel economy. With extensive development on both big-block (454/502 CID) and small block (350/400 CID) engines, these systems are attractive updates for both hot rods, production carbureted vehicles, and off-road four wheel drive vehicles seeking both performance and fuel economy.

Whether you are looking to do a TBI, TPI, MPI, CPI, LTI (90’s & current LT1), LS, Vortec, or EcoTec3 EFI conversion or engine transplant, look no further than Howell.