well i did my break in on topend it has gone smooth took a lot of time to get it jetted my settings are as follows running PWK 39mm. slide is #6 needle is set at top clip main jet is 172 slow jet is 48 got the air screw at one turn my comp is at 168 EGT IS AT 1186 running a little fat fule mix is 32:1 REDLINE pump gas well were off to sand mountain nevada to ride for the day we will see if rebuild turned out as good as i think it did running 4x4 tuff pipe to cant wait to get their so will keep ya posted