Hi guys. Can the overich exhaust smell be a timing issue?. I have recently installed the Flamethrower coil, Ignitor module was already in the car when I bought it, I re-gapped new spark plugs gaps to .044, My Holley 4160 carb was rebuilt last summer (6.5 power valve). I adjust the mixture screws inward until the car begins sputter and then back it out every so slightly. The cars runs pretty well but the smell is brutal. When I recently changed my plugs, the old plugs were quite sooty. How do you know if a Power Valve is blown? I believe the the timing should be set at

6˚ BTDC. Does changing it slightly make any sense?