Gabriel Pfister

My grandpa has a1978 corvette that he orriginally bought for my grandmother. I am working on improving the gas Mileage and modernizing it a bit by buying and installing the following; a rear end gearbox that will raise the gear ratio so that I can get better gas mileage because these things were built for a 50mph speed limit. A new or rebuilt cruise control. And possibly a new air conditioner/ heater. If you have any leads for me please send me a message.

lvmyvt76

new parts or old parts????