Mopor 273 Engine Vacuum Advance Hook-up

Yes, it does resemble that one. I'm going with the .31 Edelbrock heat insulator.


To OP. Pull and plug your vacuum advance line. Put a timing light on it and open the throttle. You should see the mechanical advance increase, then stop. Then attach the vacuum line and recheck with timing light. You should see timing advance further with vacuum advance line connected.