Hello I have a stock 283 in a 66 Impala 4 dr. with factory air. I recently been having some probs lately and this is about the only thing I havent done to get it started. Can someone guide me were to Order new timing Gears and chain. Should I stick with chain or go with the new style? Or anything else i should do while i have the cover opened. If this doesnt work I guess its time for a complete rebuild.. The Original probs were in a different post.