I had one in a 65 Belvedere that needed the support cut out in the trans tunnel, trans mount modified and the collector on the TTI headers moved. I love it behind the a 500" motor. It was a Phoenix trans and computer and adapter. I sold the car but still have the trans set up and 500" that will be going in another 65 Coronet. The best part about it is you can set the shift points and the trans would shift itself bracket racing. It was considered No E because all the new cars use the same computer.