Lifter problems????

with a small cam, you dotn need rollers. Think of it as putting a cast on a twisted ankle. Yeah, it will solve the issue, but it's not meant to do the job. You need to find why there isnt much oil geting to that very spot. I would guess it is cam bearings is the rockers and shafts were all on properly. Have you tried to prime the motor with the shafts removed to see how much oil is getting to the top end? FIxing it right may not be just getting the right length pushrods, it may be correcting rocker geometry, or replacing cam bearings. I'd want to make sure before you buy anything else, but that's me. Cheap roller rockers are worth every penny. I used stock original stamped steel on used stock shafts for years with cams similar to yours. The rockers are not your problem, nor are they the solution IMO.