cam will do much more than roller rockers but roller rockers are much easier
but how are you going to fix the bad geometry?
go to
http://www.b3racingengines.com/techcorner.asp
same problem with stud rockers as with shaft
do some research
esentially you have to raise the rocker fulcrum by the radius of the rocker roller
post up what you find
slantsix64 put a regrind in his- pm him and have him share the pitfalls and degreeing in challanges
are you carb or SEFI?
post up your cranking compression
what exhaust?
and WELCOME