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

MP# P3412044 68 340 Man.-114 276/284 .444/.453" 112 icl 114 lca
52* Mopar degrees Overlap
2899205 OEM number
crackedback posted last year
All the ones I measured where the 276/284 variant, which was the 340 A/T exhaust lobe moved to intake and a 440 cam intake on the exhaust side.
That's the way I remember it- sort of an hermaphrodite
221in./227ex. @ .050"???


note that NHRA allowed the 440 Magnum 276 intake lobe to be used
giving .465 lift