I ran the little Aeromotive 11203 street rod pump on my 800+ hp cuda for a long time. Went 9.50s at 140 mph at 3800 lbs w/ no trouble for years. It was a dead head system.
The same pump is on my road runner now...feeding close to 700 hp.

I now run the Aeromotive A1000 pump and it works great. It feeds both the motor and the nitrous system. Only reason I changed was to go to a return style system for the street. Much better for pump gas/heat/vapor lock.