Thanks for all the information I like it when all the options are in a positive manner and all are helpful. At this time the route that I going with is some old 273 adjustable rockers with the correct length hyd pushrods. I had heard about cams being made on smaller base circle but was not sure that the purple shafts were manufactured that way. This engine was built twenty four years ago and never run because when they started it up they didn't have much oil pressure. Then the owner suddenly passed away. SO it set in the garage for twenty four until I bought it. Found the oil gallery plug was missing and replaced it. (Don't ask how I knew to look for that ). Engine runs great other than Alot valve ticking.
Thanks again.