IF IT DOESN'T SAY PINGEL, IT ISN'T THE REAL THING. Don't Let Your Stock OEM Petcock Be Your Carburetor's Main Jet. Maximum engine performance depends on the fuel flow out of the valve. Research has proven that, at a flow rate of only 28 ounces per minute, stock petcocks can starve even stock engines. If you modify your engine in any way, more fuel flow is required and must be supplied or you will suffer major tuning problems. Just increasing the size of your jet will not make more fuel available to your carburetor at high RPMs. More applications available. If you don't see what you're looking for give us a call!