How do I check if my car (76 280z, manual) came with California emissions? I always assumed that it was Federal emissions (no cats; spent it's whole life in the northeast and michigan), but today I went to replace the distributor and the one on it is stamped D6F4-03. Can a California dist. be run on a Federal car? ...and just to double-check: D6F4-01 = Federal Emissions, Manual Transmission, dual pick-ups D6F4-02 = Federal Emissions, Automatic Transmission, dual pick-ups D6F4-03 = California Emissions, Auto and Manual, single pick-up The shaft in mine is wobbly and needs to be replaced, the car also doesn't like to rev past 3500-4000 RPMs without getting really rough. I realize that is probably from the shaft, but could the wrong distributor also be a culprit?