who is running MRL (BAM) Lifters without lifter bore sleeves

I don’t know if the 829s are better per se but the lifter bores may be a little less worn. The rockers are the MP blue 1s from the late 90, no needle bearings. Same as the crane golds. Maybe the stroker hv oil pump is some how better or maybe because the stroker was professionally built and the 440 was home built. Kim