15 to 20 hours, Got it.
As for burning oil I think its still fairly tight in the bore, before the belt shredded Id given her a good 4 hours of work and I checked the oil this morning before fitting the belt and it needed nothing.
The only real issue with her is cold starting and i prime her with a squirt of RP7 so she blows a smidge of blue smoke but im assuming its more the RP7 burning off than anything else and im getting no carbon around the muffler outlet other than what I get from running unleaded fuel (I miss grey pipes lol).
I took a few pics this morning that im going to post in the resto thread shortly.
Cheers,
Boffa