[~The Jester~]

You hit the nail on the head. Learn how to read the plugs the correct way, and you'll be just fine. Other than that, you can get an aftermarkey air/fuel ratio gauge. It has it's own O2 sensor, and reads your exhaust mixture for you. Summit and Jeg's both carry them, if you want to go that route. Keep in mind also, that just about as soon as you crack the throttle, your now on the main circuit, and those idle adjuster screws do NOTHING. Another point to mention about most idle circuits. The scews do not adjust the mixture ratio. The air/fuel ratio is predetermined in the carb by the idle circuit air bleeds, and the idle fuel well. What the screws DO adjust is the AMOUNT of that predetermined mixture gets fed into your engine. So you're doing it right, just keep checking on it.

Good luck!