For the second go around, I removed quite a bit of material from the intake side of the slot. More than what I would have done previously for 1.5 rockers(with heads that had the slots like they used to be).
I think the PR’s would now clear with 1.5’s...... and we’re using 1.6’s.
But I wanted to make sure I wouldn’t have to do it again.

My work around for the rocker pairs being “too wide” for the heads is to machine down the spacers that go between the two rockers.
I’m surprised at how few rocker sets/heads don’t need attention in this area.

I’ve done it to probably over a dozen sets of Mancini rockers/Ede BB Heads.
It’s amazing to me that basic combo of parts isn’t a simple bolt on.
But all the ones I’ve had here, if you just bolt it all down, the rockers are all jammed up.