Fuel pin and 3800 RPM governor spring for 12-valve diesels with Bosch VE injection pump.Baseline improvements 30-40 HP, 90-100 lb-ft of torque.
Flat ramp profile allows smooth fueling and acceleration throughout entire RPM range, and avoids excessive smoke.
Machined and heat treated from 4140 chromoly steel.
3800 RPM governor spring increases throttle range by approximately 1300 RPM.
If you're looking to add additional power, please consider checking out my timing spacer kits, or the "power pack" option that includes timing spacer, governor spring, and fuel pin.