When I tighten my rocker arms down to .002 or even 0 cold lash the pushrods are super loose on the other end. Are my pushrods too short, or is there something else I need to do? I have a predator with a gx160 head, .016 head gasket, black mamba cam, 26 lb springs, lash caps, burris guide plate, reinforced stock rockers. Stock length cm push rods. Can I keep tightening on the rocker arm until the I can still twist the pushrods easy, no way to fit any feeler gauge between the lash cap and rocker then.