Coil help

I recently out in a rebuilt motor into my jeep. I havent ran it yet because I cant start it. I have no spark. When I clamp my tester to the neg on the coil and put it to ground it lights up. I tried the wire from the distributor and nothing on ground. So there is positive power coming the neg side of the coil. Can you guys help, Its a 1944 willys jeep with a L134 engine all stock.