What is a Flotek high flow pump? Assume you mean FloKooler water pump.
Don't care for those personally. A cast iron factory pump and factory (closed)
impeller would have been just fine.... But that's not your actually problem.
You answered your own question actually- you're probably not getting enough
air flow through the radiator core and condenser core. (I don't care for aluminum
radiators either, BTW. Too much other stuff has to be changed for them to work
correctly. And yes I have been there..... with a $700 custom Fluidyne no less)
Air flow. Probably a puller arrangement if you can fit one. That should do it.
As the drill sergeant said, "I taught you everything you know. I didn't teach you everything I know."
"Human beings, who are almost unique in having the ability to learn from the experience of others, are also remarkable for their apparent disinclination to do so."
- Douglas Adams