426 small block stroker

My Uncle had one of them stage IVs in a Duster right from the factory. Biggest small block they ever made. Had a factory 7 speed behind it. And a Dana 95.
Wasn’t that the fame dual over head quasi-moto engine?
They were, IIRC, capable of low 11’s OOTB & 27 MPG’s.
They painted them that puke brown paper bag color if memory serves.
I think my dads sisters 4th husbands 3rd removed adopted cousins, step son (half Asian) kids grandson married an chick from the land where they built the Yugo and had one imported back to the states. I thought they were smokin dope until they showed a discolored Polaroid camera picture shot. I guess it must be true that right?!?!