oil pressure and different weight oils

I'll admit, anything under 20lbs with a fresh build would have made my sphincter pucker :D, even with the wide clearances.

I think you're probably safe, but I'd up the oil weight as others have said to see how it reacts. I'd be concerned more about the increase with rpm. 50/60/70 at 6000k would ease my fear's quite a bit...lol.

I understand where your stocker friend is coming from, but I'd prefer a little higher pressure at a reasonable idle speed on a street build.

Although many moons ago, I almost exclusively used Melling's pumps. They all seemed to vary quite a bit with rpm, like 25/30 at idle, to 70/75 at 6000/6500 rpm's. Just seemed to be the nature of those pumps.