if it ran before, then you have it wired right, yes you might have jostled something loose or it might just be Murphys Law that a connection worked loose at the same time as the intake swap. Pull the wire/terminal off of the "ign" male terminal on the starter relay to disable the starter then have a helper hold the key to "start" & you under the hood with your meter see if the coil and MSD are both being fed.