Hey buddy....car looks good! 
I don't think I would mess with your stance....it looks fine to me. 
I think '67's sort of sit soft in the ass end stock. My memory is bad, but isn't the spring rate softer anyway on '67? They utilized a Z-bar to assist the torsion bars under load. Also, not sure about this, but '67's use longer axles and tubes. When I converted my '67 to short axle and tubes, without adjusting torsion springs, my car gained about 1/4" in height and went a little more positive camber. 
Personally, for safety's sake, a smidge of negative camber isn't a bad thing. 
Car looks fantastic, man. Of course, I'm partial to '67's!!! 

Hey Jim I'm doing the same thing on my 67 (converting to short axle)
I found a 63 transaxles with axles and tubes (shorter than 67) ......
Can I put all the stuff on without problems?
Thanx a lot