New roller cam...

Well … a slant might have #150 lbs of spring pressure so it’s not really stressing the lobes . But the more aggressive cams that most guys are running today will require stouter springs.
.....and a stock slant has under 100# spring pressure. lol My unicorn head, on the other hand does not. I set it up with the Comp 911 springs. Big block Chrysler springs. I'd have to go back and look at the assembled height, but it's somewhere around 140 on the seat if I remember right.