Ford SB 289 302 351 Windsor Dual Idler Noisey Timing Gear Drive Set You cannot over-shift and miss

You cannot over-shift and miss a gear with Speedmaster automatic shifter

and flame ball-milled finishes

It is set up to accept a spread bore carb

8" diameter ring gear and removable pinion support

this pulley is designed to provide superior durability and efficiency

Ford SB 289 302 351 Windsor Dual Idler Noisey Timing Gear Drive Set You cannot over-shift and missSpeedmaster 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.