Only thing I did was added, i/h/e, but noticed that was getting less miles on a tank since I got it in May and did mods in July. This weekend my buudy said the car smelt funny (as I turned it on) said you running rich, and I need to do something with my fuel injectors???? Thanks for the help, I'll take out my brand new (~2K miles) NGK platinum plug tomorrow and check them out.