No start after tuneup, 440

:help: Working on my buddies '75 Imperial and I am completly stumped, car ran and drove fine before but was in need of a tuneup. Ran when we pulled it into the garage. Put a new cap, rotor, plugs, wires, coil, and now a ballast resistor hoping that was the no star issue, but still no start. It has factory electronic ign, Ive quadruple checked everything is connected in the right order and Im still not getting anything, I have fuel, air, and spark but I cant get the dammed thing to fire. Any ideas, am I missing something obvious? :banghead: