Restoring shine to gelcoat body?

I have a 1937 Chevy fiberglass bodied street rod that has been in storage for a few years. The black gel coat has faded to dull and there are a few parts were someone attempted to clean it and it left some streaking I can not wipe off.
I was wondering if anyone had any experience with buffing or polishing bare gelcoat like this. I am not to the point where I am looking to paint it, but I would like it to look decent so I can start drving it more often.

Any help is greatly appreciated!!

You can buff it like paint, but... Gel coat is not paint, and was never formulated to last a long time in the sun and weather, so don't be surprised when the gloss or color fades quickly.

http://www.poliglow-int.com/

Whatever you use, be sure to apply it with a SHAM-WOW:3dSMILE: