Finally finishing up the truck, all new brakes were done so we took it around the block which totals about a mile and pulled in the driveway and you couldn't even touch the radiator. My mustang would never be THAT hot in such a short period. Timing is right on. Only thing I can think of is do I have something plugged in my cooling system? Should I try the womens panty hose trick in the upper coolant hoses and see how much crud I can get out of the system? Runs great, idles great. Temp gauge does not work, (stock in dash and always reads H even when its cold).