Would stepping up to an electronic fuel pump have any advantages over a mechanical one? And does Royal Purple really benefit over regular oil?

Welcome ( Lot's of new people lately )

For a street car, I would stay with a mechanical pump, they are more reliable and less noisy.
I have both on my race car. The big block mechanical pump I have (with a SL6 lever) makes 6-7 psi at idle but I turn-on the electric right on the starting line just to be sure the fuel pressure stays up.

As for purple oil, never used the stuff.
DD

Is there a way to test the mech pump? I just replaced mine and I held my finger on it while someone cranked the motor and it didn't seem to pulling very well.

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"Nothing in all creation is hidden from God's sight. Everything is uncovered and laid bare before the eyes of Him to whom we must give account."

To test the pump just grab a Fuel pressure guage and hook it up

very easy to do and will tell you how good the pump is!