[tom406]

I'd go with the $20k number. Big things are if its an R code (Q code 410hp 427 4bbl just doesn't get the same love), if the 427 is still there (most seem to have gotten 352's or 390's after someone blew up the 427 or scavenged it for their lighter drag car). Condition of all that anodized aluminum side trim is important, as it is very difficult to restore properly and NOS stuff has dried up. They bring comparable muscle car money on the open market.