bent rotor contact blade

i tried dropping in a different distributor, but im not sure if its a good one or not, ive had it in a box for a couple of years, im just wondering why it wont fire, then i will be buying an all new distributor

Take the harness side of the distributor plug and with the key on in the run position tap the exposed metal bullet to ground. (intake, block, whatever)
You should get one spark with each touch.

Of course this assumes you have the stock ignition module.
If it sparks you know the module is working.