Car won't start, No spark, why!??!

I just replaced my intake manifold gasket, put it all back together exactly how it came apart...now I don't have any spark and the car won't start. I checked the ignition timing, it's where it should be I believe. I tested the pick-up coil it's good. Checked all the fuses, they're good. I don't know if there are any relays or what, but I have no spark and i'm lost on why. any help is appreciated.

nevermind found there were 2 plugs that were exactly the same that got switched around...now i have another problem for another thread.