I'm certain everyone is aware that the stock fuel pressure regulators regulate fuel somewhere around 52 PSI with no vacuum line connected to it (atmospheric pressure). But what people don't often know is that when you apply boost pressure to that vacuum line, fuel pressure rises substancially, and in stock form you get somewhere around 68 PSI of fuel pressure at full boost! Now, I have a stock replacement regulator from Standard on my engine, but it doesn't seem to be increasing fuel pressure with boost. I don't know if its a bad regulator or whatnot, but my question is, "Do the adjustable regulators increase fuel pressure with boost?"
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