Emissions on a Cuda, [Edited by Moparts - Family Friendly Site - Keep it clean]!!!! You live in Arizona, what the heck is going on out there? How is retro active emissions even legal? It wasn't required back then, and it shouldn't be now. Note to self, never move to Idiotzona.

Disconnect the accelerator pump shot entirely...Then reconnect it for the drive home. Other than that, you could switch to E85, but you mentioned you weren't willing to do so.

'70 Cuda,...605 EFI Hemi Street Car (6.20 best pass, 1.33 60ft)
https://www.youtube.com/watch?v=WYw6RA-k5Bk (6.25 at 108.75mph from inside car)
https://www.youtube.com/watch?v=3zQEb9uxFng (6.25 at 108mph from outside car)
https://www.youtube.com/watch?v=JCvfzsC4NgM (9.9)

'66 Barracuda AWB Stretched nose Blown 440 Car in build stage

'71 Duster Drag Car 400 Low Deck 512 best 6.002 at 115.44mph
https://www.youtube.com/watch?v=Znuo3jMUXTk