Which valve cover should I choose ?
 

I like them both.

If going with the bottom set, what color would you paint them, or would you use as shown? That makes a difference in my response.

But, overall, I'm leaning towards the top two-piece covers to match the way your engine looks.

1st set - chromed aluminum 2 piece, although they will be hard to keep clean if you have a driver. Smaller lettering, but I like the painted bow tie.

I like the bottom one painted the color red of the body with the script left as cast but...…..
The top one matches your air cleaner and IMCO I think that would be the better choice.

https://cimg7.ibsrv.net/gimg/www.cor...f5e950b896.jpg
I like these but they won't work with a brake booster

They will if you turn the booster 90 degrees outboard and mount it under the fender (my tube-frame Grand Sport) :thumbs:

https://cimg8.ibsrv.net/gimg/www.cor...00203bc2c8.jpg

How did you do the linkage on that? Is there some sort of bellcrank in that perf metal structure?
Doug

Yes - there's a bellcrank arrangement that translates the fore-aft motion of the brake pedal pushrod to the lateral motion which operates the C4 booster. Photo below shows a better view of the bellcrank and its bracket on a friend's GS. :thumbs:https://cimg6.ibsrv.net/gimg/www.cor...759982523a.jpg