Would you say the HS 1.5’s will require more or less clearancing on the heads than for the Hughes rockers?

The placement of the slots is def not where it has been for years.
I had done enough of them where I pretty much knew what needed to be done for pushrods to clear.

I’m not sure any of the popular rockers would have put the pushrods where they worked on this set of heads as they came ootb.

Possibly a T&D 1.6 or PRW steel 1.6.
I don’t think any 1.5’s would have.