I put COMP rockers on mine and it worked fine. Did you use the "IOEC" method to adjust? I've seen the info on 'stock' pushrods too. As long as you're not changing springs, stock should be fine. If you up the spring pressures, probably a good idea to change pushrods. I currently have TrickFlow heads/cam package in mine and still using stock pushrods. Runs fine. (This combo was written up in HotRod mag a few months ago and they also used stock pushrods)

http://paceperformance.com/index.asp...=Custom&ID=637