Mine was 14.1 at the hit with the old fuel pump and leaned out to 15.3 at the end of the run. I switch pumps and the LM1 read 11.9 to 12.3 the whole run, which was slower than the lean runs That is using a 30 cc pump on the center carb. only and 32 squirter I am getting ready to do some more tuning on both sets of carbs as soon as I get the LM1(with the LC1 upgrade) back in the car The power cord broke the red wire solder connection going into the box