Are the adjusters in your H.S. rockers 3/4x24 or 7/16 diameter x20 threads? If 3/8 go ahead and order your pushrods another .065 longer, that will raise the adjuster about a turn and a eigthth(1/8),(.0625) still leaves a half turn of the thread under the rocker When it comes to the adjusters shorter under the rocker arm is better, as long as the pushrod cup is not close to touching or rubbing on the rocker arms