You may not have put everything back together correctly. There are a lot of connections on the Z32 platform. Triple check all your connection to make sure you've got everything correct. Then do the spark plug test to make sure it's the spark plugs not firing. If that's the case, go down the list of everything in the ignition system and inspect.
Search under "spark plug" or see the FAQ for "not starting" issues. And in the future add more details. Details help us tremediously. Also, put these type of post in TECH. Good luck.