OEM AC question

[36chevy]

I live in Florida so it gets very hot here and my square is my dailey. I have the orginal AC but running a 5.3 from 2002 siverrado using the 2002 comressor and orginal clutch fan. In the morming or if its raining the AC is very cold. As soon as a get in any traffic the temp starts raising up to 79 degrees which is not comfortable.

Question is if I go electric will the increased cfm cool better and will that help with my ac problem. Also would going with an aluminum radaiter change anything.


Thank you in Advance
Jesse