You can see the adjuster with the correct threads and how there is nothing more than a full nut on the top side of the rocker.The cam calls for .028 lash hot on both sides ,so i set the lash at .025 (its cold out) with the pushrod and not the adjuster on the rockers .Sorry the pic is not very good ,but you can see it if you look on the 3rd one back on the pass side ...