Absolutely stunning and my dream in the '70's even more so than the CB750. Did you buy it as a project because they are seriously expensive bikes to buy in any condition.
This was all I could dream of in the 70's with my mum on the back!! Things improved a lot in the '80's however.
Bought it off a friend who in turn had bought it 10/11 years ago freshly restored. He rode it once maybe twice and probably did less than a hundred miles on it then laid it up at work for years until one day he asked me if I was interested in it, did a deal for slightly less than he paid for it and had it for 2 years now. Nice old tank, not particularly fast and very juicy but comfortable and always gets a bit of attention.