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SimpsonWrangler 02-25-2012 10:48 AM

Spark plugs?
I did the Nutter bypass, hei distributor, Weber Carb upgrade on my 88 4.2 YJ a while back. It still just doesn't seem to run right. I still have to pop a fuel regulator in btw.
I'm assuming after these mods that I probably would no longer run the book recommended spark plugs for the stock set up. Any ideas of spark plugs I should be running now??


barjeep 02-26-2012 10:23 PM

what fuel regulator?, i run stock plugs no problem.

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