13 speed shift knob air lines

I'm in the process of a 10 speed to 13 speed swap. Have everything ready to go, and hooking up the airlines to the shift knob. I'm running into an issue here. I have everything hooked up correctly to the knob by the book. However, I am getting air back to the shift knob to the H/L line when on the low side. This line should have air to it when on the high side, so that there is air to the splitter. This is on a 16913a, but an early model non-Halo. I'm wondering if there was an early version shift knob that may have the air going to the P port when in high instead of low. I'm at a loss on this one.

 

I'm doing some research, and I'm wondering if this is not a 15 speed instead of a 13 speed. No tag. The salvage yard I purchased from verified it was a 13. So, if this is the case, and it is a 15, I know I'll need a different shift knob. What is this going to do to my ratios?

 

Lp 22.5 and 4.10

 

Not sure if you can tell from this picture, this is the only one I have at the moment.
What is making me think it's a 15 is that I have air on the h/l line back to the shift knob when in low, not in high like a 13 should be. I have a new A6913 shift knob on it now.
It's making me sick thinking I'm going to have to pull it.