Question for those of you with an 87 Circuit with Sprint (non-indexed) shifters....Do you have the extra 0.8mm spacer between the bosses and the lever? When I tighten mine down, it is still too loose and I saw a diagram where some bosses require the extra spacer.
https://www.flickr.com/photos/stronglight/3430476621
I replaced the Tange Falcon alloy headset with a Tange Levin from Velomine--32.0 and 27 crown. The bottom cup when in normally but the top required some
file and emory cloth at the rear of the HT before it went in straight. If I get shifter bosses replaced and the frame painted, I'll have the HT reamed properly.
I used a Nitto seat post to get the Concor's angle correct. I think it is ready to wear out this cheap chain while hunting down a proper rear derailleur and a more heroic freewheel.