2000 gt startup problems

I had a leaking intake manifold that leaked coolant on my driver side spark plug. After i replaced the spark plugs (all 8) and i decided to redo my fuel injectors since i have just over 100k on it. I started having trouble starting up. It will crank with no problem i have a new battery, starter, alternator but it wont ignite right away. When it does catch i sometimes can smell un burnt fuel but no leaks from the top so im assuming its just getting exhausted. Is this a coil pack problem or a fuel pump problem. and how can i check the coil packs. I went through my hanes manual and all it said to check was resistance, which i did although all of my resistances where the same on all 8 it was below the range the manual specified. any help is appreciated i dont want to burn out a new battery, starter or plugs.