This is a Duesenburg SJ Roadster, 1934, 1/24th scale Monogram kit. This is one of a series of classic auto kits produced in the 1970s. The kits are remarkably high quality and very detailed. They're long gone from store shelves, but can still be found from dealers and on eBay and such.
Anyway, the first step is to carefully wash and dry all the parts with cool water and a grease cutting dish soap.