Grew Some Big Ones VC

Ok Guys...everyone jump in here and answer...I have question from all of you posts.

I've already added a can of STP (advice from Roscoe) 3 days ago.

I have the Permatex-Red-High Temp gasket sealer/maker and a "Cork" valve gasket, will the Permatex work in stead of the shellac...if not what brand of the shellac do you use...Indian Head by Permatex?

As far as doing several oil changes...I'm all for it and was wondering what you think about Auto-Rx? It is not solvent based like Seafoam...would that mean it easier on the engine? or just use Seafoam, as recommended?