A friend of mine that used to run Super Stock in a Hemi, often talked about the thousands of dollars that guys would spend having their carbs 'worked' by some pretty smart fellows, just to gain that last .001 in ET. I know carb work can get pretty involved when you get down to the nitty gritty, but us mortals mostly stick to basics. That's why I asked questions, just to gain a little knowledge, because those guys are pretty protective about what they know.