Thank you all for the information. Definitely helps me wrap my head around the concept. A little more detailed Info. I take off at 1500' elevation full throttle, full rich and max rpm, two positive rates of climb and gears up another positive rate and flaps up, after 600' AGL fuel pump off and I bring the RPM back to 2600 as I climb. I climb to 11,500' and during the climb I lean the mixture as I go as but not let the temps get hotter than 380/1500. Once I'm at 11,500' I close the cowl flaps and open the power boost. At full throttle I'm about 19 or 20 manifold pressure at 11,500' and the boost opened gives me about 1 more inch. I reduce the RPM to 2350 and keep leaning mixture till I get as close to 380/1500 without going over. When it's all said and done I'm 11,500', 20-21" MP and 2350 RPM burning about 8.5 gph. I thought I was running LOP per my maintenance guy but now I dont think I ever was. Will I see a significantly better burn rate than 8.5 by trying to get over to the LOP side or is the way I do it now just fine? I'm all about improving my skill and taking care of my engine but if it's a tricky process of getting over to the lean side of peak without messing my engine up in the process or killing it because I did the bump to hard will I get that much better economy or is 8.5 gph good and the engine just fine where it's at?