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911st 911st is offline
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Join Date: Jan 2004
Location: Sacramento
Posts: 7,269
No.

No matter what the fuel pump is able to deliver the reg built into the head maintains the same System Pressure in the head.

If one's fuel pump is not performing well the car can run lean.

One can jack up the System Pressure at the FD built in reg and get more fuel.

You might be thinking of Control Pressure. If you did increase that it would lean the motor.
Old 01-19-2010, 05:39 PM
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