they recommend ressurfacing vintage used lifters but do have an american made brand that they have had good luck with they told me.. i bought those lifters when i bought the cam. still sitting here in the box though..
gotta runa good break in oil then a good oil afterwards with flat tappets.
i've been running driven motor oil.. is it over kill? maybe but its in there and so far so good... i've also run VR1 with good results too..