After replacing the intake manifold gasket, the engine cranks but does not start?

Hello everyone, I was wondering if anybody could give me some pointers on what to do or look for. I changed both the lower and upper intake manifold gasket on my vehicle listed above c1500, because it suddenly started to leak from the lower and it caused the vehicle to overheat. It worked perfectly fine before. I reassembled everything, everything looks good, but it does not turn on. It cranks but does not start. I'm not sure what the problem could be I connected all the pluses and grounds. I checked the fuel line, and it looks like it has plenty of pressure. I tried using carburetor cleaner on the carburetor but got nothing. not sure If I messed up any pieces when I was cleaning the manifold. Has anyone had any similar experience?