Slant 6 Turbo 68Dart Project

I also read that the drool tube heads needed no washers, but as far as sealing goes, this didn't seem to be the case. The plugs I pulled out before these had washers, and sealed just fine. I couldn't get the washers off them and decided - well lets try it anyway. No oil drips or nothing- I was pretty happy with it, but that was pre-turbo.

I'd think if anything the washer backs it out and makes it stick into the chamber less, no?