Thoughts on Cooling a Stock 383 HP Barracuda/Dart.

I run the factory 68 Radiator and exhaust manifolds. No problems with heat. Yours is a 69, 383 radiator. Make sure the new core is a 3 core like the factory. If you are running the 4 blade fan, put it on the shelf and get a factory flex fan or clutch fan. I run a 160 thermostat without a shroud, but my 383 was honed with torque plates and mains torqued.??