Long valves on W2's with .600 lift?

35 or so years ago ran W-2 stuff, 3/8 long valves,no undercut, cast rockers, steel shaft stands,steel retainers, lash caps, big block springs. Roller lifter cam mid 6 lift,turned em mid 7,s. All this was direct connection stuff. All of the kit car 355 parts were heavy but it all worked, didn't know any better back then. Still have a complete 355 and a few parts around. I know lighter is better but that old crap worked just fine