howdy I'm new here on this site and new to owning a Buick my grandpa bought a 1956 century back when he was in college and he want to fix it up this summer for my graduation gift and a chance to bond its been sitting for about 20 years I'm not scared to turn wrenches cause i work as a Peterbilt/Kenworth mechanic but have no clue when it comes to cars it has a 322 nailhead and an automatic and wondered what yall can tell me to look out for and some common problems