| I had a problem passing the emission test. My Z failed the 15 MPH HC ppm portion of the test. Received the following from Greg via Bernie: "It is tougher to pass with high flow cats and they will never reduce emissions as much as the stock cats. We find that by simply retarding the ignition timing at the cas to about 10 btdc they all fly through smog testing even here in California where we have the toughest standards in the country. After the test bump the timing back up to 15-17 for the best safe power for pump fuel." Hope this helps. Where I live in Florida we do not have emissions testing requirements.
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