how to remove drag race car cut off switch and wiring without loosing power

[novaworld]

i have a 72 nova ex drag car with tail panel cut off switch,i removed all that stuff from trunk and the ford solenoid switch as well,now the car has no power to any thing,so when i removed all battery trunk parts it left car without any electrical power,so how do get power back,car was running fine and no problems before that,car has internal voltage reg in alternator,only pos cable on starter solenoid and has a under dash kill switch,car cranked with a column key. thanks