My stroker is happy with a clutch fan and good radiator. I'm running the MP 5 blade kit. Also a high flow WP slightly overdriven. Benefits are simplicity and effectiveness. Also no added electrical loads and wiring. Electric can be good also... I believe the OE fans are the best in terms of performance and value (Chevy HHR, Ford Taurus, Ford Town Car, Feets Mercedes fan). Flex fans (at least some) have a bad habit of coming apart at high RPM. Not for me.