My old-school 49 Wayfarer is low tech and pretty slow, but it does have some vintage speed equipment - Edmunds finned aluminum head and Offenhauser dual carb intake. Wide white walls and baby moons. Still 6 volt. One modern concession was front disc brakes after I had nothing but trouble with the original setup. Also replaced the fluid drive with a conventional manual clutch setup from a 55 Dodge.