[musclecar61]

What is the best method or cleaning the fuel injection system on a 1991 5.0 HO? Can I do it or do I need to take it to mechanic:?:

 

[stangdawg]

Run a bottle of injector cleaner in your tank of gas. Lucas injector cleaner or gumout work fine.

I also put in about 4 oz of Marvel Mystery Oil in every tank of gas.