when i adjusted my valves i took the pipes off as well as the manifold pipes so i could feel the clearance, then i hooked up a battery to the servo motor so that it turned and pulled the cables as tight as possible, then i turned them back until the were flush with the exhaust port. But evidently i have had an error in there some where. this time when i adjust them should i do what some people say, lower my idle down to about 700 then shut the sled off? this suposidly opens your valves as much as possible, then you can flush them up from there.