So last night I dropped the tank and started replacing the fuel pump. I used a new Bosch pump. It was the replacement pump for the TJ I had previously and never installed. The only specs I could find for the pump weren't actually from Bosch but this pump is supposed to be capable of over 100 psi. I haven't tested pressure yet but I'm sure it's fine.

Changing the pump wasn't without incident but I have the new pump in and the tank not leaking fuel now. It didn't help. I'm still running very lean.

So I just got back from NAPA with a new fuel regulator. I hope to get that installed this evening and see if that helps. It occurred to me this morning (after I already had everything buttoned up for a test) that possibly my fuel line from the tank to the rail has an obstruction in it? It could possibly be that the line isn't allowing enough volume of fuel through but because it isn't a complete blockage I have good pressure?