ligtning running rough ( help )

white bolt

New member
2001 lightning lower pulley 6 lbs. mass air, k& n. tune

took trip 800 miles. truck started to run bad ( missing, no power ) about 40 miles into trip. thought it was some bad fuel, it wasnt ran this way whole trip.

After returning I bought new coil packs and plugs ngk tr-6
After replacing old cops and plugs it seamed to help out 1000 % , had power and ran good. Now after it warms up, it has a very noticeble miss at idle and during acceleration. ( still runs strong ) any and all suggestions will be appreciated.
 
Back
Top