@rumblefish360, I have a question about roller tip rocker arms ( I'm not using them ). I've read that they are known for the roller tips coming apart, what causes this? Manici does have the ductile iron rockers, which shafts do I need for these? I probably wouldn't be doing a cam swap till the winter. I figured that since I'm going to convert to a 4 barrel that would be a good time to swap out the rocker arms too.
