47-55.1 Brake Drag?

[ChevDog1]

Drove the 55.1 to work today (30 miles) to shake it down after replacing the suspension, adding power brakes, and power steering. Wire fell off of the electric fuel pump at about mile 8 (easy fix). At about 25 miles, while in stop and go traffic I started smelling hot brakes. A couple of miles later at a stop light I could see smoke rising from the left front wheel. Couldn't tell if only one wheel was dragging or more.

Brakes are stock drums all around with a new CPP booster and MC in the stock location. Vacuum bled very thoroughly, and adjusted to where they spun freely and just barely touched the drums. When I first installed this kit the pedal would go all the way to the floor and only barely stop the truck. I discovered that I had too much free play in the pushrod so I tightened it up until "I think" it was just barely touching.

Did I go too far? Is it likely that the MC is applying slight pressure causing the brakes to drag? I have taken it on a bunch of small trips (7-10 miles) without issue, but today's longer drive was not good. I am going to have to nurse it home as I don't have any way to adjust it here.