Hello, I have a 73' Super. I need advice on adjusting the 34 pict 3 carburetor. Right now it runs good, but is running rich. Rich to the point where it smokes lightly. My question is, I turned in the volume control screw, new o-ring on it. I don't know how far to turn it in. It seems like it gets tight after 1-2 turns already. I' am wondering if the new o-ring is making so tight right away. I just don't think I have it turned in all the way when I start out. Or do I have it turned in too far when I' am starting out? Therefore causing it to be too rich after turning it out 2-3 turns? Thanks for any input.