Is this the Bill's in Fort Lauderdale? If so, they are predominantly a rebuild, service and used part facility. Good for used stuff like wiring harnesses, trim pumps etc. For high performance engines I would recommend Chief Engines.
Bills is located directly behind SM Marine, home of Tony San Marco and Doug Janisch and about 1 mile north of Doller Marine. If you'd like me to check something out for you at Bill's, I'm at SM Marine at least once a week getting something for my boat.