If you have good smoke at WOT, and temps are where you want them, lean the LSN in 1/2hr turns till hesitation is gone. Temps should be used as a reference,210 is is on the low side, imo. 230-245 is good running temp, imo. You do need some heat in these engines to run efficiently. If you tune your low speed needle according to "the tuning bible" at the top of forum, you'll get the best results... good luck...