My spark plugs are fouling pretty bad and the car is running rich...if i put a hotter plug in will it help the rich condition? it runs that rich that it backfires through the exhaust and smokes at idle. Plus the gas millage SUCKS...lol

 

How are your o2s? Got exhaust leaks? All plug wires connected? How olds the opti? I dont know about hotter plugs, but you might wanna swap some ngk TR55s in there, I have always had good luck with those when my setup was NA.

 

02's 2 days old, fixed exhaust leak at header flange, All wires are connected and in propper order. Opti has about 200 KM on it....i need a gasketed plug for the afr heads...i have a procharger also thats why i was running the colder plugs.