No spark after engine swap

I swapped a 99 4.0 into my 95. I used the old coil, intake manifold and all the old sensors. When I went to try it for the first time I get no spark. The engine I put in already had a distributor, so I put the black inner cap with wires from my old dizzy onto the 99 dizzy. I doubt its 180* out since I never touched the distributor. Help me brain storm what to look for.

Much appreciated.

Dipstick grounds or firewall ground clean and tight(ohm them out)? CPS plugged in? This is a crank, but no start issue?

I'll check the cps plug. yeah, it turns over but no spark

ding ding ding. give that man a cigar. It wasn't the plug, but it would appear that I forgot a bolt and it wasn't sitting flush. pushed it down for now and boom fired right up. Nothing like the sound of a nice strong motor....