New radiator ??

[91GTturbo]

Have you done a compression check to verify you haven't blown a headgasket? How about pressure testing the cooling system to make sure you don't have a leak? Are you losing any coolant?

As far as the radiator, unless your running a power adder, any good 3 core radiator will do. You can pick one up from Pep Boys, Advance Auto Parts, Auto Zone, or similar places for $100-$150. Those radiators are going to be brass, if your really dead set on a aluminum, try a Ron Davis. They sell for about $230-$270 in alot of the mustang mags. I run one in my car and it's made a big difference.