Looks like you have it set up much like my Gavia with 8-speed Chorus Ergos and a very narrow block. Not sure, but that looks like a tubular wheelset as well. Raced that 12-21 block with 53/39 all over New England. Nowadays, that would be unheard of and racers would probably have 11-28 blocks in 11 or 12 speeds.
I recently started running my GL330 front and Reflex rear with the 8-speed cassette and 8-speed chain. I love how it performs and there's something special about the strength of that 8 speed chain and cogs.