no mufflers?
i would at least use resonators.
You want an "Old Car sound"??
Try Smithy's
Classic sound from a classic name.
Straight from Patriot the world's oldest performance mufflers are now available for that "resto-rod" or your 1950's custom. Get the muffler your dad used to impress his friends, and yes, it's still guaranteed not to blow out or leak. Double end cap construction and 3 1/2" hammertone finished cases assure the original Smithy look.
http://store.summitracing.com/partdetail.asp?autofilter=1&part=PTE-H3010&N=700+115&autoview=sku