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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: gconcilio on January 16, 2006, 09:20:00 am

Title: Vacuum Advance
Post by: gconcilio on January 16, 2006, 09:20:00 am

Where should the vacuum advance hose be connected; manifold or ported source?  Also, what should the base timing be set at?  81 chevy 350, with Holley carb.

Title: Vacuum Advance
Post by: Lt.Del on January 16, 2006, 12:52:00 pm

On my 79, it goes to a check valve then to the TVS switch on the thermostadt then to a manifold source.