Put them babies in a museum. Racing slicks are at best only good under ideal storage conditions for 2 years (some tires claim 3) from there born on date that we do not know and is not published. They are natural rubber and cold temps, hot temps, sun lite, welding and just about every thing you can think of will cause there early demise (quicker than 2 or 3 years). Don't run them, they were junk to you over 10 years ago.
Sorry to be blunt, but them tires are so dry and degraded that they are not likely any use to a tire recycler either.
Bruce