Ashton,


> No, the car is not overheating. It's never overheated. What happened
> is that I installed an AC unit in this 60 Dodge. That has made it run
> about 10 degrees hotter then it used to, mainly from just having the
> condenser there in front of the radiator. So I was thinking about
> whether it would be a good idea to go to a 13 pound cap instead of the
> 7 pound one on it.

I don't follow this. Your radiator is running about 10 deg. F (?) hotter
with the AC, so what? Why is that a problem? You aren't anywhere near the
boiling point of your coolant, are you? Assuming you have a 50:50 mixture
and 7 psi your boiling point is about 255 deg. Changing to a 13 psi cap
would improve things by raising the boiling point to about 270 deg.
Unless you are getting close to 250 I don't understand why you want to do
this. Be sure to check my math. These figures are quick guesstimates.
Sorry, sounds like a waste of money. Keep an eye on the temp gauge this
Summer though till you're sure.

Dave M.