Re: rocker arms...1/4 more turn???
Normal adjustment is 1 full turn from initial contact. However, a performance adjustment was 1/4-1/2 turn to prevent pump-up at higher rpms.
Usually, the locknuts are on the same thread of all studs if they are at the same height for a fast visual reference, at least on SBC's, 3 threads would be showing atop the adjusting nut if using stack crimp nuts.
Sometimes, aftermarket lifters have alot of clearance between the inner body and outer body or the check ball isn't as round as it should be or the seat for the ball isn't a mirror finish for good seating. General fix is to replace the lifter(s). The faulty lifters will be the ones with a sunken inner body, not up against the snap ring, sunk about 1/8 inch.
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