1970 c10 power brakes

[imaguywithemail]

Almost done with my 70 c10 stepside, Finally found a damn driveshaft after like 8 months of searching, now I just have one last thing I need to do to make it driveable - the brakes. The issue I'm having is that originally I had the manual 4 wheel drum brakes on her, and now that I've put the '72 chassis underneath, I have disc front with power brakes. Apparently there's something I need to do because since I put the new brake booster and master cylinder in my pedal is closer to the floor and my brake lights are on all the time. Any insight as to what I need to do? I'm hoping I can just drill a hole somewhere else on the brake lever and move where the rod attaches. Any insight? Anything would be appreciated. I'm dying to get this thing on the road again, and am hopefully looking at just a few more weeks before I can drive her again.