Need some direction with original C4 parts. My 89 was judged Top Flight in Orlando last month with a couple of deducts for missing correct air filter(forgot to check that one),correct oil filter, and upper RAD hose(had service replacement on car). Car is scheduled for PV at Charlotte Regional, then on to Windsor for McLellan, if things go according to plan.. I am unfamiliar with part #s/sources for this generation.. Thanks, Jeff Burkey