I just added the Vintage A/C system to my 68 camaro and really love it , but now I have a overheating problem while sitting in traffic. Was wondering if anyone else has run into this. I have a 350 engine with a 4 speed transmission. The first radiator was a 3 core for a automatic trans so I switched it out to a 4 core for a manual and that helped a little but the car will still overheat while sitting. It runs very cool while moving but will slowly overheat while sitting still. Any ideas I would appreciate. Thanks , Art