'89 roller-cam LA 360 w/Magnum heads - new roller lifters not pumping up

I hear u Kurt, roller lifters with oil holes for THRU PUSHROD OILING TO MAGNUM HEADS. No need to rotate crank or cam whatsoever. passenger side lifter galley gets tons of oil at all times, and the drivers side gets a good amount of oil full time by going down to the #1 main bearing in a passage at the front of the block then up to the driver side galley. If there was a problem up front-such as blockage in the passages feeding the driver side, but U do not have this cuz when U put the "good" lifters in the driver side the flow plenty. I would put the 8 hi flow lifters on the driver side just for the heck of it, and preheat the oil, and spin the pump for more time while pumping the plungers of the 2 weak lifters with pushrods