Two things that I can think of right off hand is to remove the rotor under the cap or in the trunk there is a switch on the rear of the car just behind the driver side light that you can take a key or something to pop the button up and that will disable the fuel pump.
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James Cox
nochevy@hotmail.com
1991 Mustang LX
12.565 @109.38mph 1.764 60ft