Modifying A Rochester Carburetor To Improve Your Pontiac's Performance - Calibration Celebration
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Other than the basic handtools required for normal carburetor disassembly, we purchased a set of numbered drill bits and several single bits in various sizes from a local hobby store to measure the initial calibration and enlarge the restrictions of the idle circuit. A micrometer was used to verify the actual diameter of each bit. View Related Article
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