I run .358 lobe lift on my hydraulic roller with stock lifters/linkbars. I did measure how much more I could get out of them before the linkbars bottomed out but I don’t remember the number or if I wrote it down. I’ll look. The oil grooves was a non issue in the tall magnum lifter bore.
You're making me rethink ordering a cam recently with 230/236 and .340/.347 lobes vs. the 230/236 .360/.357 shelf grind they offer. If nothing else, I figured the shorter lobes would be a little easier on the stock lifters.
What springs do you run with that cam, if you don't mind?