"GT5OH" > wrote in message
...
> Hey guys,
>
> I am getting a weird stumble from my 1990 GT when I mash down the
> pedal at WOT. It feels like all of a sudden I am running out of gas
> or just loosing power. I have checked all the vacuum lines and I am
> not sure what else could be causing this. Here are the modifications
> I have done recently which one of has to have caused this:
>
> Cobra upper and lower intake manifold (w/spacer)
> Shorty headers
> Radiator
> Water pump
> Fan w/clutch and shroud
> cap and rotor
> wires
> alternator (upgrade to 130A)
> Ram air hood
>
> If anyone has any idea what could be causing this I would appreciate
> this, it's not fun when your mustang won't get up and go when you want
> it to. Thanks for the help guys.
>
> Sean

could also b a plugged converter