just start from factory and tune from there. we cant tune it for you, but we can tell you what to do. do you have a temp guage? its nice to have one to check temps every now and then. when tuning watch for bogging down and cutting out. if it bogs the moment you hit the throttle then lean the lsn an 1/8 of a turn at a time. if it bogs down at high speeds then lean the hsn an 1/8 turn at a time. make sure you have some smoke at all times. this isnt always accurate, because you can have temps above 300F and lots of smoke, so thats why a temp guage is nice to have. but dont rely on the temp guage. just use it to make sure you didnt go over the edge and so that theres no problems. good temp range is 240F to 280F