Update...
Got it all together with the bigger injectors and decided to force open loop and dial it in first.
Right now, its running good. I pulled a lot of timing out of it and have fuel coming in around 11-11.5:1 when in boost.
Now my questions...
How much timing is safe on a non intercooled 4.0 with 7lbs on 93 octane? Ive got very little advance in it under any positive pressure.
Also, im seeing boost in part throttle conditions when going up hills or taking off from a stop. Fairly low load but right now, I've got the afr setup to be in the 11s under any positive pressure. Could I safely dial this back a bit since load is low and boost is low? Could I bring this area up to say 12.5 and still be safe?
Thanks