[stucky2947]

I have a similar build in my '62 GP, and I have found that my stock radiator did not cool well with the high compression. I bought a Griffin aluminum radiator and now she runs 180 - 185 all day in the heat of St. Louis summer. I used the radiator cap that came with the Griffin, I think it is a 14 psi cap. I am running a 160 degree thermostat and use regular ol' radiator hoses from Napa. (I had to find ones that work in my situation since I put a '69 motor in a '62 car.)

Make sure you check the clearance between the divider plate on the water pump, it should be a little less than 1/8". Modify if necessary and use the gaskets when checking. If you do a search on this subject, you will find lots of good info.