Need a plan - component selection for restoring 68 340 that runs on 91 oct

That's the problem with comp
No solid masters in their lobe catalog for Mopar/AMC/IHC at all and no MOPAR hyd shorter than the XE274HL
They do have some Jeep lobes but they are designed for a bigger base circle- no Idea how they would work on a MOPAR
in any case there is a gap between the largest Jeep and the XE274HL
When asked for a custom Comp has come up with their CHEVY Extreme lobes IDK how that works with the heavier MOPAR valves