Whelp, by looking at some math suggested for going from 2.93 to 3.69, I think I've come to the right answer.

I copied the sprocket ratio (1) and pulses per mile (23310) from my factory file. Then, I used the following math.

2.93/3.05 = .960656
1/0.960656 = 1.04095535

So I used the PT to increase the value by using the percent tool and putting in 104.095535% on the 22.29 stock L67 PPR. That gave me 23.2 PPR. I guess this will work...