Vacuum Advance Conversion
WARNING: May contain chemicals that may cause cancer or reproductive harm.
To strengthen emissions controls, 1972-'76 TR6s had only a vacuum retard unit, while earlier cars had both advance and retard units. The later cars had up to 20 degrees retarded timing at the crank! With this modification you can enjoy the performance these cars should have. In about 15 minutes with the distributor out you can install this new unit, which replaces the original retard unit in distributors 41385 and 41558. If using original Zenith-Stromberg carburetors, you may require #365-315 vacuum port adaptor to access ported vacuum on top of rear carb by removing the existing plug (if your carb. doesn't already have the adaptor). You will need to plug the vacuum source used for the stock vacuum retard unit.
For non-smog inspected cars only!
Installation
InstructionsDocuments
The Longest in the Business
- All Classic British products are warrantied to be free from defects in material and workmanship for 2 years from the date of invoice.
- All superchargers, supercharger components, and supercharger hardware are warranted to be free from defects in material and workmanship for 1 year from date of invoice.
- Moss Motors, Ltd. will, at its discretion, repair or replace any part that fails in service within the warranty period. This warranty does not cover labor, failure of related components, normal wear of brake or clutch components or failure resulting from alteration, misuse, accidental damage, faulty installation, or faulty repair.
- Warranty requests should be submitted to our sales department and must be supported by the original Moss Motors purchase invoice and documentation of the failure.