Brake Problem

[Eyegore]

OK guys I need your help. I replaced the brake master cyclinder and booster, still having a problem with no front brakes but now I stuck with the brake lights being on constantly. I have to disconect the battery cable to get it to go off. I know that my front brakes need to be bled, the whole system does after you replace the master cylinder, but I cannot figure out the brake lights ....... help I'm stuck.

Oh, this is on my 78 3/4 ton. I did bench bleed the cylinder prior to installing.

Thanks guys