in your first post you said you had adjusted the mixture jet, that would be the screw that controls mixture page 15 of your manual goes into the terminology as well as the idle mixture adjustment procedure.

you posted you have run several tanks of fuel,you should have run 3 for the initial break in,pg.13/14 then at least 10 tanks or flights before adjusting the low speed mixture.
when properly adjusted the power and fuel economy will really increase,I made the asumption that the engine was already installed in your plane,break in can be done this way and a engine stand is not needed.

if you have only been running your engine at 7,500 RPM and your not mounted in your plane, then you might want to do the install and do a short run in/break in raising the RPM's to the recomended max RPM's as diagrammed in page 13/14 of the manual after doing the break in check all bolts etc.. temp is not something you need to worry about unless the engine is laboring in flight, its the proper RPM's for the metal to wear in properly that are the most important in the beginning of the engines life.