I don't know a ton about pushrod cams and heads by any means, but enough to hold a convo about them or understand what people are talking about.

It would be interesting to have a sticky explaining the science behind OHC cams, a cam profile, different aftermarket cams, etc etc. Basically the same as JRP's cam guide, but about OHC motors.

If you dont want to wait for that there are numerous books on this subject that you can buy. They will give you a much greater depth of material. Also they cover a lot of things that typing out would take forever