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That switch on the firewall is for your lock up torque converter. It needs vacuum.
That is for full manifold vacuum.
Quote from: zieg85 on May 26, 2020, 11:07:36 AMThat switch on the firewall is for your lock up torque converter. It needs vacuum.Where does the lock up torque converter connect to? To the carburetor? Sent from my iPhone using Tapatalk
That switch is the tip-in vacuum switch. The TCC switch is closer to the booster