Jim,
If car was run in stock class you may be able to run headers and just hang the stock exhaust (pipes and mufflers) off of the header at a single attachement point with one bolt/nut (effectively running headers only) depending on what the rules were. It'll be loud but it'll draw some attention to your neat, historical ride.
Vintage gauges will be a nice touch.
Good luck and keep us posted (with lots of pix)!
Only photo I have available right now shows (if you look real hard) how the original owner of my Chevelle hung his exhaust so that the orignal exhaust pipes and mufflers were in place, but rules allowed him to run thru headers only.
