AEM's Universal Adjustable Fuel Pressure Regulator is capable of supporting enough fuel flow for engines up to 1000 horsepower. 

AEM's universal fuel pressure regulator is tapped to accept a -6 AN, or 9/16”x18 fittings and includes a 1/8 NPT port for a fuel pressure gauge or pressure sensor pick up.

AEM Instruction Manual.

This is a Race Only product that is to be used solely for competition. It cannot be used on vehicles that are operated on public streets, roads or highways. Its use is limited to closed-course and open-course racing that is formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, could be in violation of local, state and federal laws.