340 runninng lean and overheating

So instead of replying to all you nice people, I just want to give an update.

Started the engine sine I was going to upload a short clip. Fiddled a little with the distributor cap and fired it up. Sounds completly different. No idea why, but if I where to guess, the cap could not have been fitted properly before, og some **** fuel finally ran out, and the good followed??
Also, my sparkplugs are now om the black side.

Will have a test drive tomorrow followed by timing checks:)

Regarding overheating and air om the system, I believe that this i correct. Did not think of that

Anyway, I will upload the clip regardless