Ford 351C Cleveland Dual Idler Noisy Timing Gear Drive Set They will allow for the

They will allow for the use of reverse-style transmission valve bodies or switching from a 3-speed to a 4-speed

The shifter includes a lighted gear position indicator in the bezel

Speedmaster shifters designed to fit most 3 or 4-speed automatic transmissions

These manifolds require a universal 4-barrel throttle body

Speedmaster LS dual 4-barrel

Ford 351C Cleveland Dual Idler Noisy Timing Gear Drive Set They will allow for theSpeedmaster gear drives are great for you folks who want better timing. Their dual idler design has CNC machined components and they are easy to install. These drives fit under your stock timing cover and come complete with instructions. Minor machining may be required on some applications.