Evans Coolant Temps

So what’s the general consensus on running a pusher AND puller fan set up? In the PC world it’s seen as expensive but does increase cooling with water cooled set ups. I’m thinking I could replace one of my weak 10” pusher and put a 14” “high performance” Spal fan which would increase my cfms from 800 to 1800 a 1k increase. Could also go with a larger puller fan (11-12” with a higher cam rating) but didn’t know if a large overlap of fans would cause more issues.
Bare in mind that the temps did stay constant and even cooled a bit once I got out on the road at 40mph but heats up quick at idle. And I don’t have room for a shroud or clutch fan.