To test the flow:
1) Remove coolant from radiator/engine by removing lower hose (radiator side) & save.
2) Remove upper hose (radiator side) & block with a rag.
3) Add water from 'garden hose' & watch lower radiator hose nipple.
The water MUST run out as fast as it goes in. If not; there's a restriction.
Good luck.
PS: "flex fans" are supposed to save fuel because they 'flatten out' & pull less on the engine. That's bogus; put the factory one back on. Your running TO HOT.
