You know, I never thought about adjusting a Fox carb by using the number of turns out. Using a engine test stand; usually I set the idle to around 1 and 1/2 to 2 turns out, then the main needle way out like at 5 turns. I fire up the engine, run it extra rich for a while to get it oiled up good on the inside, usually around 6 to 8 thousand RPMs or so. You may have to leave the glow starter on it if it is way to rich at first. I then lean it out a little. next I adjust idle to get a decent idle, then I go back to the main jet and adjust it. If you are breaking it in, you'll need to run it on the rich side for a while, sometimes a long while. You may have to repeat the process a few times depending on if the engine is breaking in or not. Generally, for the FOX engines with the older carbs, you set idle first, an then adjust the main jet needle. The idle jet can affect the main jet. But normally once you get the idle dialed in, you rarely need to mess with it again for a long time.