hey guys i have a big question
"mustangs aint **** without a supercharger"
Ever use a top end cleaner like Seafoam? Fuel injector cleaner?
Vibration from the motor? What kind of vibration, be specific. I probably can't diagnose it but I'm sure somebody else can try.
BTW: I'll bet the valvesprings are getting tired by now...
the vibration happens when i come to a complete stop, it vibrates then it goes down then it happens again then it goes down to no vibration. and it only happens when i stop. the other day i was in my friends 2004 suburban and it does the same thing but you could barely notice it you have to put really good attention.

