[Jim Paley]

I’m seeing guide plates in that picture. Seems to me I’ve read here before that many guide plates don’t fit quite right and need to be “adjusted”. Sorry, no first hand experience.

 

[Jim Paley]

The picture isn't his so nothing seen there is relevant.

Ah, yes. I read that and promptly forgot it.

 

[Jim Paley]

To add , 1.6 rockers + more spring pressure on stock pressed studs not the smartest plan even with a stock cam.
Sure lots get away with it,,,,,,,,, large number of cases , it will pull studs.
Seen it more than twice first hand ,where guys havn't got away with it.

For sure. I didn’t realize how little the press in studs could take until recently when I started looking into rebuilding a set of heads. IMO, They are basically ok for a stock rebuild, but aren’t appropriate for any kind of performance.