Howell Engine Development provides conversion kits for some popular 4WD models like the CJ and the Toyota FJ40. Their conversion kits come with all the parts you need to convert to an off-road and emissions-legal throttle body. Howell kits have all the components you'll need, including the wiring harness. They manufacture each kit to fit your specific make and model. Howell is located in the United States. The company was started in 1988 by Matt and Bill Howell to support the trend of electronic fuel injection in the 4WD, street rod and hot rod industries. Howell combines GM products with their own wiring harnesses and 2- and 4-barrel TBI and TPI units.
They have spent many years developing systems for both big- and small-block engines that provide performance and fuel efficiency. All of their products are the highest quality and backed by a money back guarantee.