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

Hi Moper excellent advice on the heads and os valves I like the higher end dura bond sintered seats for non TI valves
We looked at the Comp 256, 262 and 268 and 274HL unfortunately comp does not make a Mopar HL version of the 256, 262 or 268 and I'm not about to support a cam company that does not support me. Plenty of other good cam companies out there, as you mentioned. I won't leave torque on the table. With a HL version I can use one size shorter and still have more area under the curve- unless you are maxed out on compression- which is not the case here.
Comp also has NO Mechanical Flat tappet cams for Chrysler except some old Top Fuel grinds. Johnson makes Everybody's HR conversions
I'll pass