Performance Online, Inc. (POL) introduces this High Performance Vacuum Pump.Great for power brake applications when running a large camshaft that causes low engine vacuum. Available for all vehicles! Help stop your vehicle when you do not have enough engine vacuum to your power brake unit due to a radical camshaft or blower motor. POL’s vacuum pump produces 22in/hg and is regulated to turn on at 15in/hg. This regulated component will take the pain out of stopping. Kit includes: Vacuum pump, vacuum switch, vacuum hose, check valve, bolts and washers, electrical fittings and filter muffler.