Blown to hell cb400T

Loses bout a quart a week. Got the seal kit from vesrah. Looking for advice on what to look at while it's apart and what to replace..... I've had it for two years and am finally getting ready to make it into the bike it deserves to be. Engine has about 40xxx on it. Leaking between the case/jug and jug/head Got plans for a very open x-pipe exhaust that will be mostly hidden underneath any ideas on where to start on the carbs/filters?

Worry about the engine, first. Get that bad boy apart and figure out whether you're going to need to bore it out a bit. Depending on how well this thing was taken care of it might be pristine, or the cylinder walls might be scarred all to hell.

I have an extra set of jugs that I got on ebay last year. Should be able to use one or the other I hope.