fedupc3,
You will never be able to tell much by what air cleaner is on a Harley, since that is the single most changed item on any Harley. Plenty of us with the 103's dumped that plastic air box immediately in favor of the open SE round backplate and K&N filter (or one of the aftermarket variations).
If you really want to know what cams you have, it can be determined without completely tearing everything down. Get someone to measure the approximate lift and duration by removing one of the rocker covers and measuring as they turn the engine over by hand. As for the crankshaft, unless you want to pull the cylinders I can't think of an easy way to tell exactly what you have. As long as it runs well, why worry about it?
Jerry