Oil pressure concerns

I'm currently running Lucas "Hot Rod and Classic" oil.

That's overkill, especially if your valvetrain is stock. At over 2000 ppm, that Lucas product has twice the ZDDP you need, and that level has shown to cause pitting and spalling.
Try something with around 1000 to 1200 ppm of ZDDP. There are several out there, including Valvoline VR-1, Penn Grade/Brad Penn, Driven, some Amsoil, etc. Also many diesel engine oils are good options.