August 4, 200915 yr Author comment_291143 It very rarely blows black smoke but grey smoke yes. Burns the eyes but its an old car with no emissions. It pulls hard core all the way like a MUTHA. I pulled number 6 plug again even after idling it does not look the same as 4 or 5. i put a boroscope in 6 to check stuff out. NO leans spots on top of piston. No hot areas either. Carbon buildup but no more than the other cyl. I can see way down in the base of the plug on 6 and it is the right color down there. It just confuses me why 4 5 are tan/brown at idle and 6 is not. ONly thing i can think of is 6 runs hotter on a zx motor?True getting all 6 perfect is not gonna happen i am sure. I love carbs though. FI rocks but trying to keep it old school. Maybe ms the ignition but fuel just plain looks and performs better for me. The z just got back from paint it is actually sublime green mopar. Looks yellow in pics dunno why. But its loud mopar green. I live in muscle car land and have no one to talk to about z's. anyone wants to pitch me there number for a good old fashion z chat please do. Link to comment https://www.classiczcars.com/forums/topic/32672-ignition-experts-come-on-in/?&page=2#findComment-291143 Share on other sites More sharing options...
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