I trimmed the excess epoxy/flox mixture from the edges of the flanges and made the intake square to the opening and flat.
The flox mixture allowed the flanges to fit perfectly over the flange extension.
And filled in nicely where the flanges end. There will be some high-temp RTV between the mounting surfaces to seal any small openings.
I mixed up some epoxy with lightweight filler and buttered up the surface to smooth it out. This should be cured enough to sand by tomorrow.
