Strange cam specs
Looks like the #1 ex lobe is .035” shy on lift compared to #3.
As I recall, a lifter can be retrieved out of the valley thru one of the open areas of the head.
Id pull the one out of #1 exhaust for a peek at the bottom of it.
.332 x 1.5 = .498
That’s a big ask out of the springs that go with rotators.