Quote:
Originally Posted by Tuff Gong
What size carb jet are you running on your stock 4 barrel Quadra jet? I keep failing smog on my stock 350. I'm at .07 and it won't pass.
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Changing jets isn't all there is to cleaning up the exhaust emissions. Timing, timing curve, PCV valve condition, ignition components (spark plugs, wires, coil, cap, rotor) condition, and last but not least -- overall engine condition... All have a direct bearing on emissions.