[explosivpotato]

Glad to see you got things worked out! From what I've been taught, 13.7 is right around lean maximum torque, which is where you want to be with an NA build like yours. Have you played with timing? You might be able to give it a little bit, but if you want to do that you'll probably need to up the octane rating. I run 93 or sunoco 94 and it's never more than 1.50 or 2.00$ more per tank. Just throwing that out there.

There's a lot of power to be made in ignition timing. Are you running stock plugs? Or have you gone with colder ones? NGK heat range 7 will probably increase your knock margin, giving you a little room to bump timing, irrespective of octane.

Looking good, though, man! Get that bitch on the dyno so we can see what a PROPERLY tuned NA beast can make!

EDIT:
also, you know you can up the rev limiter with the emanage ultimate right? That might net you a little bit when (not if) you decide to go for cams. It's an addiction, you know.