Thanks for this thread. I have the same bike (bought new 30 years ago..) and used this to guide my rehab of my 1984 Super Course. Turns out the bike might have been a bit small for me... looking at having to get a longer seat post and get a 180 mm crankset.... (It's a 62cm frame... I'm 6'6" and prob could use a 64... but since I have legs on the long side, it might be better to get a longer crank and longer seat post. That would leave the measurements to the drops still comfortable for my upper body..)
Anyway, I am looking for suggestions for a new crankset, seatpost... and down the road new Mega freewheel and F & R derailers....
So keep sharing what you do to yours!
Thanks, Ed