My engine won't start :(

Prior work before I started it. I have a MSD ignition SCI module, external coil, MSD cap, and MSD wires. I was gonna convert it back to normal but i'm missing the two screws that connect the wires to the coil.
Since I didn't have them I put back the old stuff. Before I put them back in I sanded the inside of the cap and the tip part of the rotor.
So I tried to start my car. It cranks over at a good speed, battery is good. It took like a 1 sec for it to fire but then it won't keep going it would fire up,then die, then fire up, then die.
Unfortunately this is my only car
Since I didn't have them I put back the old stuff. Before I put them back in I sanded the inside of the cap and the tip part of the rotor.
So I tried to start my car. It cranks over at a good speed, battery is good. It took like a 1 sec for it to fire but then it won't keep going it would fire up,then die, then fire up, then die.
Unfortunately this is my only car
