[CobraEd]

Never heard of 215 gears. Strongly suspect that you have that wrong. 215 gears are what they would use at the Bonneville Salt Flats :-) Double check the ratio by marking the tires and driveshaft . Then spin the tires one complete rotation and see how many times the driveshaft spins. For example, for one tire rotation, if the driveshaft spins just a little over three rotations, then you have 3.08 gears. If it spins two and three quarter times, you have a 2.73 ratio. etc etc.

Anyway. put in 3.73 gears and you will love the car. perfect ratio for a strong 302!! Don't forget the nylon gear in the transmission where the speedo cable goes in for the proper speedometer readings.

You will need to determine if you have a 9" rear or an 8.8" rear in order to order the proper gear sets. Everything I stated above applies regardless of which rear you have.

(PS. Get some good aftermarket aluminum heads and you will pick up a good 60-70 hp just with that alone. If you have stock heads with that manifold and cam, your heads are a big bottleneck).

Ed