Re: oil galley restrictors
I am running a set of roller rockers on my 428 w/hyd. lifters and have no problem. Since the hyd. lifters have a bit more travel and give you have to adjust the rocker a couple of times to get them to be quiet. example: after I ran the engine hard and when the RPM's decreased there was a bit of lifter ticking, but still quiet at idle and normal running. I kept adjusting 1/8 of a turn untill the ticking went away, it's now quiot at any RPM.
To adjust loosen the nut and then tighten the screw to desired setting then tighten nut.
It's fairly simple