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

I was running Morel, who made the bam lifters. No bushings. On a side note my 470 stroker is not bushed either but I use the comp 829s. Oil pressure is 100 cold. 60 at idle warm and over 90 down the track. The motor was built in 1998. Had new lifters and valve springs in 2013. Kim