In typical MP fashion....... I have two catalogs from different years.
For the forged steel non-roller rockers, one catalog says the 1.65’s and 1.7’s are intake rockers...... and the other says they’re exhaust.
To bad I can't get them anymore. The dealership that I deal with ( 25 years) would bring stuff like that in for me and verify without me having to commit to purchase.
I remember a miss listing on a Massi head that I had them bring in and it turned out to be just a 2.2 4 cyl head. If it would have been the Massi I would have cleaned them out! lol
