I have run as high as 185 on the seat and IIRC it was 500 over the nose.
You can do it but you MUST run a 20w50 oil and you need at least 80 psi of oil pressure at WOT.
Anyone who says their lifters can’t use a 20w50 oil needs to learn the truth. If the lifter can’t use 20w50 the lifter is junk.