Prop valve question

[marts213]

I was wondering if I have the wrong proportioning valve on my truck. I have a 69 with front disc / rear drum. I saw a pic that Clemson71guy posted and it has one line going to the front brakes that splits and one line going to the back brakes that splits. (see attached pic) Mine has 2 separate lines going to the fronts (the 2nd line comes out above the rubber cover on the front of the prop valve). The rear looks to be the same.
My truck stops fine, but there is a lot of pedal travel (approx. 2 inches) before the brakes start to grab. I've bench bled the MC and bled the brakes numerous times, the rear brakes are adjusted tight, the booster rod is just about touching the piston in the MC, and everything has been replaced (MC, prop valve, power booster, calipers, hard lines, soft lines, rear wheel cylinders and drums, shoes).
The 2 things I've come up with on the old posts has been bleeding the proportioning valve (still not sure how) and that there should be a different hole in my brake pedal for power vs. manual brakes. Believe it or not, my pedal only has one hole. Thanks for any help.

Mike