What is the best way to seal the dish type of soft plugs in my 62 Hawk? This is not a full flow engine. I have a cup style wire brush that goes on my 90 degree drillmotor, it cleans the seating surface well. Do I smear the back of the plug and the seating surface of the block? I have many of the cup style of plugs, several on a old girlfriends V-6 231gm, but not any of the dish style as found on my Hawk. Thanks for your help Lou Cote

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