The smell is almost "combustion like" with a splash of carbon in it... whatever it is, it smells good!! When I first got my car I had the same gasoline smell in my garage. Turned out to be the carb leaking gas externally. Besides other issues with it, I decided to replace it with a Holley Street Avenger. Never had that problem since. Be sure to check the bottom of the gas tank (drain plug) for any small leaks. I had this happen after servicing mine. For what it's worth, I still have the charcoal canister hooked up.
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