Bob Willard wrote:
> GT5OH wrote:
>> 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
>
> Have you checked the fuel filter? It could be clogged.

It might be a dying fuel pump too. My guess is the problem is fuel related.