I know a pretty good mechanic who told my friends dad that i can trick my stock 5.0 computer to reprogram for more performance. He said to disconnect the battery, then reconnect it and start the car and immediately rev to about 2000 rpm. Anyone heard of this? Would this be possible with the entire stock fuel system?
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90 Mustang GT. K&N air filter, completely stock. Purchased at 107,000 for $3500
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