[Bobcat]

Priobe ... you asked how to set your valve geometry . Rule of thumb I have always used is that when the valve is at 50% lift , the center line of the rocker tip/roller and the valve stem center line must coincide . At that point , good things happen . You can make your own adjustable pushrod by cutting an old pushrod in two , taking out a section and replacing it with a threaded rod . This will allow you to lengthen or shorten the pushrod to get correct geometry .... or you can buy one from a number of sources .
As far as rockers , I`m using the Sigs on my Cobra , however , someone on Club Cobra is selling a set that he says is a large step above the Dove , but not as expensive as the Sigs . I think it is blykins .
I`m not real impressed with the Dove stuff . On my Galaxie with only moderate spring pressure and lift , I`m wearing the shafts and bottoms of the rockers at about 500 miles . There is another thread on Forefe.com on Dove equipment you might want to check out .