Converting my 68 SS 350V8, 4sp to air conditioning (Vintage Air). Need to change out the radiator & shroud to air (23" wide core). Looking for advice on the best radiator to buy. Plan to install a 7 blade, clutch fan. Looked at alumitech, be cool, griffin, etc. Do some cruising i.e. Hot August Nights, so the engine will running at idle /low speed for extended periods. Would like to avoid electic fans if possible, but may need to install a manually controled pusher. Any input is appreciated