1972 Plymouth 340 - 4 speed - 355 gear - Carburetor Suggestions
Having run most of these combos mentions over the years I would keep the TQ. It’s a great carb when built correctly. The spread bore holley is a bolt on so that’s a nice alternative. The AVS and AFB choices require an intake change or spacer. Maybe a creative gasket stack up will work too but I have never done that.
My best running stock 340 was my old 73 340/727 Dart Sport with 3.55’s in the 8 1/4. Had the stock TQ and it delivered great drivability, decent fuel mileage and performance.
Cliff Ramsdell