Head bolts do not have an infinite amount of reuse. They should be replaced with new ones after three or four uses. In this case, use means re-installation, not mileage.
You really don't need head studs on a stock spec engine. The 105 comes from the use of an original Boss 351 assembly and the combination of the specific head gasket originally used on them.
That engine had an advertised static compression ratio of 11.5:1 and the 105 torque is for race use with a high compression application and the specific head gasket recommended. Typically a CJ assembly spec engine is fine with a 90-95 lb-ft spec and a current Fel-Pro.
Essentially, the 105 lb-ft spec is now obsolete.
Use the dowels to locate the head on the block as you install the heads.