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 A lot valve ticking.
Thanks again.
Twenty years ago most parts houses and cam grinders stocked the early, pre 1967, and later hydraulic lifters. The early ones, both hydraulics and solid lifters have 1/4 ball cups in them. The 1967 and later Mopar hydraulic lifters use a 5/16 ball size so maybe your motor has mismatch components. They do not have the same height for the pushrod cups in relation to the cam lobes
Mopar, in all of it's infinite wisdom, introduced the LA 318 with hydraulic lifters and stamp steel non adjustable rocker arms in all cars made in the Los Angles plant in 1966, all the other 1966 Cars with 318 motors had the Poly 318 motors with solid lifters
All Mopar V8 shared the same lifters back then, hydraulic or solids, same thing on the 1967 and later Mopar V8 lifters