Car won't start after clutch install

[Meh987]

So I finally got my ACT 2600 in and everything put back together. I went to start the car and I heard nothing except the fuel pump. I looked at the starter and noticed that I had forgot to hook up the ground. I fixed that and went to start it again. It cranked but it wouldn't fire. I thought that it might have been out of fuel. So, I put in a gallon and still it doesn't start. Every once in a while, I will hear it fire and the RPMs jump a little bit.

Is there anything I might have forgotton to connect or anything I could have broken when replacing the clutch? Or is there anything else that could be wrong?

 

[Meh987]

Well, we are sure that we have fuel and spark. We did a compression test and we got very low numbers. We got 100-50-70-80. Before we had 175-180 for the cylinders. Does this mean it could be flooded, or is there anything else that could be wrong?

 

[Meh987]

Well, we found out what was wrong. The timing marks werent really lining up. We used some starter fluid to get it started, and we heard the sound of the pistons hitting valves. Then we shut it off quickly. So now we're going to fix that up.