Who's idea for the 68' Hemi Dart

I have a friend that had worked at the Hurst factory building those cars. To hear him talk, it's amazing they even rolled out the door! Missing parts, un-inspected pieces and a "hurry-up & get it done" attitude wasn't exactly the keys to quality control.
As to who actually thought it up----I recall hearing a story of Bob Cahill wanting to run a car that would be competitive against GM & Ford. He asked Hoover, who asked Tarozzi what would be a good route to take. Given the rules of the day, Mopar figured a Hemi in an A-body would fall into SS/B a class the CJ 'stangs didn't fit in & at the time, the 396/375hp Camaros wouldn't into either.
Tarozzi got the job to come up with the engineering & parts to make it work resulting in a real "Rube Goldberg"-style of cut-'n-fit that ultimately worked. Of course by then the rules changed, GM came up with the COPO Camaros & NHRA decided a Hemi & an A-body were no where near the hp/weight ratio of a SS/B car. The cars ran a short time as "B" cars (there's a great photo of S&M's 'cuda with out even a rollbar around) but by then things got "weird" & SS/A, ProStock & (AHRA) Experimental Super Stock (X/SS) sprouted until there was only ProStock & SS/A for the cars to play in. The rest is history........