SSBC disk brake conversion brake drag

[DeltaMustang65]

I recently had one of these kits installed on my '65 coupe, and while checking something else out the other day, I noticed that the front wheels do not spin freely.

At first I thought that the rotors might have been torqued down too hard on the spindles, but I checked that out and no matter how much I loosen them, nothing changes.

I'm becoming convinced that the pads are contacting the rotor even when the brakes are not applied. I get a sort of abrasion sound when I force the wheels to turn, as well.

Is there any way for me to adjust this, or should I take the car back to MP to have them readjust, since they installed the kit in the first place?

P.S. gas mileage is noticably down, want to address this asap, as I am driving myself and my gf to work until she buys a new car.