HS rockers are some of the best on the market. We run them on out Magnum Crate motored Dakota and have had no problems since we put them on 6 years ago.
Me too I have the 1.6 version on my stroker, so far so good I got them used off of Ebag.
I was missing some parts so I had to call HS and they were really helpfull, ordered the parts direct from them.
yeah... pretty much all of them in the instructions you are directed to dimple or cut the oil baffles in the valve cover to make room.
also i've been told by a machine shop that you are better off using the stock type valve covers rather than aftermarket aluminums, the steel valve covers tend to have less leak problems than the cast aluminum ones