HELP! 1985 2.5l Wont start. Electrical Gods are pissed!

I have spark sometimes.. when the ignition is turned off. compression and gas is good. just did a engine swap everything worked good before the engine swap the engine just had to many miles on it. put in a new engine now it doesnt have spark when i turn the key. It does have spark when ya touch the wires together under the dashboard with the key in the on position. anyone familiar with the 2.5 liter? I love my jeep its just not behaving!