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Vacuum switch question!!

Followers

March 6, 20242 yr

Hey guys! Wondering if anyone can help me out with this. My old vacuum switch has 5 ports.several broken. It’s a 68 gto with ac. I have changed my headlights over to electric. But am now working on the ac/heater. I need 1 port to hook up my heater switch which controls the heater vent system. Can I just plug the broken ones and use the 1 good port for my heater/vent system ?? If I buy a new one how will I block them off?? Any thoughts?? Cathy