Ok, maybe this isn't a traditional hot-rod, but I believe my '63 Riv cl***ifies as a factory custom. I've owned this one for 22 years, and have gradually worked on keeping some things stock and others modern. It has the 401 nailhead, a dynaflow, electronic ignition, magnaflow dual exhaust. Plans include a dual offenhauser 2x4bbl induction and a major transmission change to a 700r or THM-400. After years of primer, the body is finally painted mercedes astral silver. It has the stock custom leather interior with a nakamichi/ads/JL audio/ soundstream audio system.
Dude that is definately custom material...very nice. Now just do as rusty said and lower it a couple inches and put some astros on it with some skinny whites and you will be in good shape. Welcome to the HAMB! Bill