I will putting my heads back on this weekend, my only thing is getting zero lash while putting the rockers on. I will be doing the "turn the pushrod" method with the engine not running. My question is do you have to turn the motor over so that the cylinder is @ TDC ? Or can you just tighten the rocker until you feel the pushrod get tension on it while spinning it? I heard if its done wrong you can bend some valves or worse....REPS for your help