Mr Akimoto seems to be long on advice, but decidedly short on manners & real-world experience. The problem, so far, is baked-on external fuel residue --- there was no mention of internal "rust".

While his advice re. internal inspection & lubrication is reasonably good, he is out to lunch on the anti-freeze issue. The glycol-based anti-freeze bath is a long-established & quite acceptable method of removing fuel residue -- both inside & out. It is NOT accomlished, as he alledges, by "baking" at 350 deg, or anything close to that. The technique involves "simmering" the dissassembled engine parts in automotive glycol-based anti-freeze, at a temp below the boiling point of the liquid. You can find numerous references to it in various RCU threads.