I guess one question you could ask yourself is....... how much power would I be willing to lose to be able to put 200 passes on the motor and be reasonably sure its not going to break/damage something in the valvetrain?

If the answer is “0”, then you’ll have to keep trying to sort through your issues.

But if the number is something more like 25-50hp, then I think you could scale back pretty far on the cam/spring package and be in that area.

As an example, one of my customers had a 770hp 557 with a .660 roller, 1.5 Crane golds, springs that were 240/550, on SR heads.

After freshening the heads multiple times, when the entire valvetrain had about 1600 passes on it(and everything still looked fine, springs still tested good, etc), I was finally able to get him to replace it all before something broke.