My friend who restors Pontiacs and has a few that are 100% original (including Rally II's) claims that all the rattle can Rally II paints on the market are NOT correct. He says unless you buy the paint from Bill Hirsh you can forget ending up with an exact match. This guy is SUPER picky and I take him for his word and 40+ years of Pontiac experience.
I beleive others on here have also commented about the Hirsh paints as well...