Thanks, I will look into this asap.

 

Thanks everone for their input- I finally replaced the plugs tonite and I'm estatic the beast lives again. Plugs where black and full of crap, the roush hawls azz again. Man Im so releaved it wasn't something serious, boy was I worried. Back to normal, I will never ever use any fuel additive. Well out of this at least I replaced the fuel filter, oil and plugs.

Thanks again.

 

Look at these nasty plugs that were pulled out of the mustang, now no more issues.