Heat cycled it a few times. Put teflon tape and thread sealer on. It came up to temperature and seemed fine. When I shut it off it was sizzleing from the same spot above #3 spark plug but not nearly as bad. I backed off the header bolt and the sound changed. I tightened it back up and the sizzleing stopped although the engine had cooled down a bit. Pretty sure it was/is the header bolt. I'll mess with it some more. Ought to get it to seal sooner or later. Maybe I'll take out the bolt and thicken up the bolt a little more. They were still pretty easy going in even after I doctored them. Got some mild wisping on the passenger side and I have no tape on that side.