2006 cm870 air in injector leakdown test

[CTTOWING]

First crank with the starter and getting bubbles out of the hose going to the front actuator location. I crank it by hand and get a bubble just before it gets to C on the crank pulley. Between B and C is cylinder 1. Was getting air out this same cylinder when it had aftermarket injectors in it, but now has cummings injectors in the front bank. I think I still have air in the rear bank, focusing now on the front bank because that is where the cummings injectors are.