1969 Dodge Dart Swinger 340 Sold at Mecum today for $40,000
Some buyers myself included look at the whole package. upgrades like disc brake kits suspension improvements oversized exhaust etc only depreciate the value if the buyer is looking for all original restoration OEM whatever. I think it's one reason I like the A body platform is that you can make some changes without being ridiculed... As much. A lot of people will like the changes for the same reason you did.