Hello All, I'm new to forum, I've been a big fan of some of the 80s Buicks and of course the muscle era. Had some questions for the group of you could. For the 60s and 70s, was the GS 340,400 & 455 just rebadged skylarks in body? Also was black a factory color for 65-70? What is a good book for those era cars or website? Regarding stage 1-2 and the ever whispered stage 3? What was the Buick performance options for the 50s? Thanks all!