Not a whole lot, maybe a bag or to, I had a 76 and I only ever took it on one long trip, between the lack of storage space and my kidneys/back (ride is not that good on long trips). This is a day trip car(for me anyways) Best of luck.
Yes, only way to answer your question is to say "precious little!"
Yes get a luggage rack or haul no passenger :)
Looking for a Used Corvette in your area?
CarGurus has 16,155 nationwide Corvette listings starting at $3,000.
Search Chevrolet Corvette Questions
Chevrolet Corvette Experts
Related Models For Sale
Used Cars For Sale