I appreciate your thoughts here. My understanding is the mega blocks were made after the "problem plagued" world blocks? So why do folks refer to them as "pre world" if they were made after? I'm not doubting just trying to learn the timeline of the recent Hemi castings

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1970 4spd Superbird, '69 Charger 500 Daytona clone,2015 Hellcat 6-spd B-5 Blue,1968 572 Hemi Charger,70 GTX 535 6-pac 4 spd,69 GTX 440 4-speed Super Trac Pac Car, 1973 383 Barracuda, and a couple Cummins