I havent been able to swap them all yet but I still have 4 on. But why does the plug keep carbon fouling in cylinder 2? I have an oem cop in that cylinder but it still fouls after a few miles.
What does the plug look like? Not what you wanna hear but if it's oily you could have some ring issues.
2010 Grabber Blue Mustang GT, Forged 4.6L Roush TVS and other stuff ... The modding shall never end ...
Wife's car ... 2014 Sterling Gray Premium GT 401A, stock for now ..