Help please

Hi there Im having trouble with my car and its really stressing me out. OK before I pulled the engine and trans the car would start with the ignition switch and run and what not. Ran ok but had a bad head gasket and engine shook and vibrated a little. Anyways I swapped out the 318 with a 360. new timing chain. gaskets, ect........ I did get the B&M flexplate to mate with the tq converter. Anyways I reconnected all the wires and plugs the same way I disconnected them when I pulled the engine. I cant get the car to turn over with the ignition switch now. I can get it to start if I jump the starter. Also the damn thing runs worse than the 318. runs rough and vibrates really bad in gear until you press the gas then vibration goes away almost.