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2002 pontiac grand prix 3100 vin J engine . I did a total rebuild on this engine , heads redone,block bored,new pistons,rings,bearings,timing chain and gears,roller rockers& pushrods,new oil pump. I have a lot of valve train noise.I took the top end apart again to make sure the pushrods were in the right order all looked good. 60 pounds oil pressure at 1800. does anyone know how much oil should be coming from rocker arm hole at that rpm. because it is coming out but not with a lot of force. should oil stream clear the head.