Cab they make two differant adjusters one for pushrod oiling and one for spraybar, if you have pushrod oiling the adjuster is solid so it pressure oils the rocker shaft, if you have sprayber it is hollow so oil can bleed to the rocker shaft. I don't think it is a good idea to run hollow adjusters with pushrod oiling. I would run solid adjusters and let the spraybar cool the valve springs.
