As others have already stated, change to S&S Premiums, adjustable pushrods if not already there (I can only guess that they are adjustable now). Same advice for the rocker arms, I definitely use Roller Rockers on a 625 cam set. Again, S&S would be my rec. The cam bearings need to be full compliment Torrington style. Makes me wonder if the valve springs where changed, and to what??
I'm amazed that people still try to use the stock lifters for power builds. They are barely adequate for stock lifts, in fact are rather infamous for buggering up cam face surfaces and destroying lifter rollers stock!!
My friends 2012 110 CVO had stock lifters that rattled so loud upon a cold start, that it startled me! At the time it had 80, yes 80 total Klms on the speedo. At 2200klms, they got louder, HD replaced them with more stock lifters. Guess what, 4000klms later, same bullchit. An independent here replaced them something from Fuel Moto, motor has 70000klms now, no more startup rattle. twinotter