Are your current valve covers original max wedge or not?
If not then you may need to do the mods already posted to get the adjusters to clear the stock baffles in the OEM valve covers for stock stamp steel rockers
![scope scope](/ubbthreads/images/graemlins/custom/scope.gif)
As far as finding a good quality set of rocker arms to CLEAR stock covers probably no such thing out there
When I first started racing, hot rodding and building Mopar V8 back in the early 1960 most people used adjustable pushrods for making a motor with solid lifters that didn't come with adjustable rocker arms
![work work](/ubbthreads/images/graemlins/custom/work.gif)
They are a pain to use and adjust though