Your first uncorked trip, to the muffler shop...
Not a Mopar but... It was 1978, just got done with some modifications on my 1967 Firebird, including headers (which I later swapped out for HP manifolds), a new turbo 400 tranny with a b&m ratchet shifter, and a 4.11 posi.
I picked up the car with open headers and drove it that way for about a week before I could get it int the muffler shop for a set of 2 1/2 inch dualies with some Magnaflow turbo mufflers.
Occasionally I 'uncapped' the headers and drove like that, never got a ticket! Ya gotta love the mean rumble of a big block with open headers!
Side note...
The ONLY car that ever beat me street racing was a 340 Duster... :burnout: