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5.0L (1979-1995) MustangTechnical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.
It shouldnt hurt it, but Ive heard of it fouling spark plugs, so Id check them after using it. You think that Seafoam will cure your lean condition? I think you have another issue
your not alone mine pops when cold but timing is spot on and is very cold blooded would sea foam help me in any way or does anyone know what causes this backfire pop when its cold
Seafoam is beastliest **** of all time buy the gallon pour half it in your gas tank and suck the other half through your vacuums if that don't solve any problem you have concerning gunked carbs/injector/vacuums you have bigger problems and do so change your plugs it helps