Random mis-fire code.
first I stripped the teath off the water pump gear and caused the timing chain to break.(but the car was at idial when it broke. It threw the p0300 code after the chain broke so I am asuming that was the cause of the code(t/c braking). So I then pulled the intake to get the water pump gear out and re sealed every thing bac up checked all of my conections and every thing is in tacked.
so now the car runs, good idal, good oil press, and fuel press. but the ses light flashes and it sounds like a demo derby car. And it bogs down when I accelerate it. Any help with trying to figure it out would be helpful.

