cleaning up the slant six head

I have read more than once now ( enough to believe ) that muriactic acid is not the way to go when cleaning parts because evidently it leaves behind a scale of some sort than can never be truly de-activated, that it will cause more damage because of this in the long run.

Ive got one of my Super Six intakes in the vinegar now, I will remove after work tomm evening and see where Im at with it.

The surface that bolts to head was already badly pitted and requires machining so was not concerned with that, in retrospect I wish that I had coated the surface that carbs bolts onto with a grease so as to protect but again I have no intentions of letting it sit there long.