Street Clutch Recommendtions

Better? Only in pedal pressure being lighter. If that is what you want. I’ve run both. In the street, the diaphragm is easier on the leg and it is a plus in traffic.
Actual holding pressure can be found through the manufacturer for what you need.

Not to be a jerk, dump that fan for a MP Viscous unit 5 blade fan and gain back some lower. Shorty headers? Your call for clearance/ fitment issues, OK fine.