i know whenever i had a fuel leak on my carb, that's what it would look like after a few thousand miles....so i would say yea, i think you have a very small leak...possibly where the two tubes mate, there may be a tiny pinhole leak.
fortunately, if you don't feel like dropping a couple hundred dollars on the super-mega-triple-bada$$ fuel rails, you can find stock ones in the junk yard and on ebay all day!
I was positive thats probably what it was, I dont think I'll be buying the badA$$ rails, I'll just snag a set from ebay or the junkyard, The leak will only get worse, not any better, may as well fix the prob while ive got it torn down, Id hate for it to get worse and my car catch fire