Really doubtful.
Likely corroded wire connectors, have you checked the firing order to make sure you didn't swap a couple plug wires around when you installed cap and wires?
Get a spray can of electrical cleaner and go over the black and white connectors at the back of the intake and any connectors in the wiring to the TFI including the spout, MAF connector if equipped, TPS connector, do the coil connector too, in fact look at the coil body carefully for any trace of 'spark scatter', the easy way to do that is wail till it's dark and start the car and watch for sparks escaping to ground around the coil.