I heard of using studs and nuts instead of bolts to get a bit more pressure on the head gasket without stripping the inserts. Anyone seen this done? Should be easy since the thread is common. Any other sealing methods? Yes, this is for a supercharger using stock barrels and heads.
How about building up the barrels and heads and machining spigots on them,along the lines of the DBD Goldstar? That would take the strain off the head gasket some and you wouldn't need to over tighten the bolts/studs.