Hello Jack (Never say "Hi Jack" in an airport!). I am just saying hello since you were helpful to me early in my roadster build. I have avoided the A/C problem with yes/no side curtains seasonally on my roadster. However I had to face this problem even for a trans cooler and solved it with an "angle mount" under a fender but you don't have fenders! One last resort might be a mount in the trunk with outside scoops and a louvered lid, just a last ditch possibility since you have no fenders to hide it. I only show this to indicate the oblique mount will work if you can get it into an air stream. Also if you have no choice but to place it in front of the radiator the next question is whether the additional heat will mess up the cooling of your big block? I am so sick of cooling problems with the tiny 1929 radiator for just a SBC 350 that I hope your radiator can cope with the added heat from the exchanger since the very time you will want to use the A/C will be in hot weather! Otherwise your new polished accessories are beautiful!
Don Shillady
Retired Scientist/teen rodder