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• POPG-1 Pop-off Gauge 0-15lbs, Not only does the pop-off gauge allows you to set your check your pop-off pressure, it allows you to check for leaks that can greatly hinder your carburetor's tune and performance. Pop-Off Pressure is not setting the fuel pressure of the carburetors. It controls fuel volume mostly at low speeds making it very critical to how the carburetor performs. Most of our alky carburetors are set to 8.5-10lbs
• 707 EC Alky Gauge (Walbro) Our gauge makes it easy to check and set your carburetor's fulcrum arm height. The height dictates how much leverage the main metering diaphragm has on the fuel inlet needle. This controls how much fuel can flow past the needle to the high and low side circuits. It can also slightly change the pop-off pressure by changing the install height of the inlet tension spring. We set most of our blueprinted methanol(alky) carburetors using the .065" side of the gauge.