I have a 1965 Satellite and I installed a 440 in it. The 440 came out of a 1976 motor home. It has new .030 pistons, 292/509 cam, and the heads are iron heads with 214/181 valves. The problem I have is that I can't cruise without the car getting up to 210 or higher if I'm just sitting in traffic. While steady cruising it comes down to around 190-195. It has a new large stock radiator, Proform electric water pump, and a 10-12 inch electric fan. Help, any suggestions?