A pic would help. I assume you had a dual pickup dist, and the new on is a single pickup. You will be fine, but look by your steering column in the engine compartment for a relay with two connectors, one has two wires, and the other has three. Unplug the two wire one and leave it off.
The dual pickup uses one for starting, and one for running. by unplugging the connector, you are forcing it to just use the one you have. Most people find it starts easier with just the run. The other was to help starting with all the emissions crap on, and working.