3325, RE: What? Posted by 95ESi, Dec-31-69 06:00 PM
He's referring to the test port on the fuel rail where you can plug in a mechanical fuel pressure guage.
On the latter models, the fuel rail doesn't have the FPR on one end like we do, so to hook up an adjustable FPR to, they use the service port opening to plumb a return line back into the tank.
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