So I’m looking for some advice on MCC tuning.

Currently, my truck is fairly basic. 2008 6.7 with 5” tbe, fully deleted, running a Mini Maxx.

I do not have head studs yet, so I’m looking to create some low end power with fuel without adding boost and keeping rail pressure down.

I do have a stock fuel system as well.

I’ve got a decent basic knowledge but could use some help on specifics.

My question is when I change the injection duration, how far can I go without causing damage?

It’s currently at 130, can I safely push to 150?

Also, how do I adjust the injection timing to fire early enough to burn the extra duration at tdc?