I recently had a crack in the distributor cap which was causing an arc. I replaced it but now the blower motor runs all the time. I have to remove the fuse to get it to stop. Any ideas if the switch might have shorted out or if it may have been something else? HELP

Your blower motor relay may be shorted closed, keeping the motor running (even with the key off). The relay is located under the hood on the passenger side, and it's the larger of the two black relays. Pull it off and see if the contacts are arced closed. If so, pop them back apart, but disconnect the battery first. Good luck.