I'm back. I started Dammit and let it run for about 5 mins with only 3 plugs in it.I touched all 4 exhaust pipes (exhaust looks like a 4-1 header). Number 1 was the only cold one of course. Number 1 was out. So I put 1 back in and tried to fire it up and it just wouldn't start. Then I left number 1 in and pulled #3 out and it started and ran. Checked #1 pipe and it was hot this time..Put 3 back in and pulled 4 it started and ran..Put 4 back in and it won't run..So my conclusion is...hell if I know. Just happy it will start..