CK1, I followed your directions to the letter, here is the result. I started with the timing, it was 21 degreess at wot, i set it to exactly 30 degrees  btdc at wot, i then put in a new plug gapped at .020, then set both needles out  1.5 turns. I fired the engine up and immediately knew this was a different engine. i adjusted the carb just as described, no miss, no sputter, got a great transition to full throttle max rpm with the 22x10 prop hit 6720rpm, throw the stick back down to idle and the engine goes to a great steady idle, then floor it great transition back up to max rpm. running fantastic, needles didnt take too much adjusting. i would say this thing is running perfect and is an absolute beast. i have a few questions, i am running the 80:1 mix with the amsoil and premium, i run that because my manual recommends that and alot of other brison owners run that mix,,is that ok i know some other members stated thats no good earlier in this post.  Also i seen some air bubbles in my fuel line while adjusting (although the engine never missed that i heard),,this setup does not need positive pressure fron the muffler does it?  <font color="#FF0000">CK1 I want to thank you for taking the time to help me, i was right on the edge of pulling it and sending it out for repair. I am truly thankful, you helped me fix this problem, and if you come to waco texas you look me up,,there is a steak dinner here with your name on it, thank you so muck SIR.</font>