WOW! 30k miles though! I'm going to call this a positive thread in favor of Irontite.

I've got almost the exact same problems as you Pinky, temps, misfires, everything. It's getting diagnosed at Austin Rover Works right now.

 

Well...I was just told my wire to cylinder 6 was burned through from sitting on the exhaust. I don't know how that happened or why.

I didn't look at it real clearly before I dropped it off...the thought of that being the cause just didn't cross my mind.