what are you using for cooling? What modle Sol is it, and is it auto or manual? If its the manual then you should look into the duel core radiator and see if that can drop the temps down some. What kinda fan are you using? If its a stocker try switching to slim fan that pushes higher cfm. If all this doesnt work then its definently gonna be the head bolts. even the SSautoshit kit your using is a to much even on low boost for stock headstuds