I jacked the rear off the car up tonight after the test drive. It seemed that a brake was being applied when it shifts to a different gear. I jacked it up enough for the rear tires to clear the ground, about 2". The cars idles really nice when I engaged Drive. When the engine RPMs were raised it shifts to a different gear and it starts to bog down the engine. Just like a brake being applied on the drive shaft.
Thanks
Tim 1960 Imperial