My father passed away a few weeks ago and I inherited his 1973 Roadrunner. The car was not driven for a year due to his condition and not being able to drive. I cleaned it up and have been running it. When he was driving it the Temp and Oil pressure gauge stopped working, we had our mechanic replace the voltage limiter which we thought was the problem but they still do not work. We also wanted to replace the radiator with something a little more modern because it tends to run a little on the hotter side. I want to keep this car and have it running solid, any help would be greatly appreciated.