my coolant wells were filled all the way to the top with coolant..could of drowned a mouse or something. ..i just popped the plug out..let all the coolant from like 5 of the cylidners drain into the engine.. after i changd the manifold and started the car up..white smoke like crazy..changed the oil...no white smoke.. simple.
funny thing is, i drove around for about 5 months with my coolant wells literally FILLED with coolant and my car NEVER not once had a single mis fire.. simply amazing.
Well turns out cylinder 4 wasn't the problem, After messing with it for awhile We decided to pull the connectors off each COP while the motor was running to identify which cylinder wasn't firing, When we got to #1 the engine idle didn't change at all.. Bingo.
Took the COP out and sure enough the spring was wet with coolant, cleaned it off and tried to dry out the sparkplug well but apparently didn't do it good enough, motor ran fine for about 2 minutes then started misfiring again, but at least we know which cylinder it is (it was getting late) Might have to remove the sparkplug and let it drain as mentioned above.