I currently am getting about 15 miles a gallon from my 235, 6 Cylinder stock motor. The motor runs smooth, easy to start and not idleing fast. Is this about right or are there adjustments I could make with the idle screw or the lean adjustment to help increase the gas milage. I really am quite the novice in many areas on the mechanical end. The pictures below show how the lean mixture as it was when I purchased car and I have since moved it to it's position (turning it clockwise) as described in the second picture. I do not want to try adjusting anything further till I get a bit of feedback from you good folks. Thanks again.