Patrick & Jim,
I was trying to see if the fuel screw loosening is a known issue with these Holley carbs, it doesn't sound like it is or whoever has it just tighten it up and call it a day as Jim states.
Since I will probably not get another chance to verify if this is truly corrected with another drive (unless there is some more unseasonably warm days before next April - it snowed last night
), I'm going to go with my initial thoughts of consider it a solved issue, find out what the replacement seals part number is and where to get it in a hurry in case it happens again and always smell the engine after shutting the engine down to catch the leak as soon as possible.
Thanks for your prompt responses, I consider this a closed issue.
Mike