The Stovebolt Site Forums The Parking Lot Panels 'N Burbs 3 spd or 4spd in 46 Burb

Hi:
The 4 speed is not going to do anything for you except give you a very low granny gear in first. To get to some highway speeds 55+ you would need to change the rear axle gears. I do believe they are available at Patrick's in Tucson AZ. You will the speed on the highway but sacrifice power up the hills.
Brian