My car is not CFX37 which is a Pebble Beach prize winner and which underwent a similar restoration several years ago. Mine is CFX54 which underwent corrosion repairs a few years ago. I never got around to painting it until now. The new metal was just sprayed black with a can. I focused instead in trying to make the car drivable. I think I succeeded. It was converted to a manual box from the original automatic. First using a 4 speed (Top Loader) like the original, then I switched to a 5 speed (Tko600, Tremec). This is a much better choice in my opinion, it gives you a good highway gear but also it shifts very smoothly. We reworked the suspensions and nearly doubled the spring rate, added an anti sway bar at the front, rebuilt all 4 corners. Tires are Avon radials in 215-70 15 up front and 245-55 15 rear. The car handles great and amazingly enough does not feel too stiff or uncomfortable on our bumpy roads but it now feels responsive and sporty. Brakes are great and will get new seals on rebuilding. The engine is a stroked 427 (454ci) making well over 500HP on the dyno. It is nevertheless very smooth and easy to drive. It provides massive power and torque all the way to 6500 rpm. We stayed very conservative with the cam, it idle smoothly with just a small tick-over at idle. I love this car and plan to drive it regularly when its done. Its too bad that AC never finished developing it, they wanted a luxury GT and made it way too soft to be really a performance car. With just a bit of development they could have built a sports GT with way more performance than anything on the road at the time (365 GTB4 included) which would have justified the exorbitant asking price.
Emmanuel