brake booster replacement

[mpierce9]

I just replaced the vacuum brake booster and master cylinder on my truck (1975 Blazer). After tightening everything down I realized my brake pedal will not return to the "non braking" position.

Do I need to bench bleed the M/C? Should I bleed my entire braking system?

Would either of these two steps possibly resolve the issue of my brake pedal not returning to the "non braking" position?

If not what other options do I have?

There is no spring involved in this setup. There wasn't one before and there still isn't. I didn't remove a spring and after vigorous investigation I cannot see a spring.