340 carburetor selection advice

A TQ will work just fine with longer duration cams. They tune the same way as other carbs. With bigger cams, as with other carbs, the IFR may need enlarging. So simple, remove the air horn, voila, there are the IFRs ready to be drilled. Jets & met rods easily changed. More bypass air maybe reqd & many TQs already have some bypass air holes in the base, which can be enlarged. With really long duration cams, I do not enlarge the BA holes because it could induce nozzle drip with the sensitive triple booster design, which gives the TQ it's great throttle response. Instead, I drill small holes in the sec blades until I get the T-slot position correct. The engine doesn't care where it gets the extra idle air from, as long as it gets it....
Do not see any benefit of 4 corner idle system, just harder to balance for no gain.
There are tuning recommendations for the TQ in the MP bulletins for both SP & DP intakes.
The TQ is ideal for what the OP wants.
Some actual numbers. I tune a 455 Le Mans that has a Mopar 850 TQ on it. Street car, 3900 lbs without driver, 3.31 axle, T400. Factory intake & hi-po exh manifolds, 236 @ 050 cam. First time drag racing for the driver & no testing done for jetting or timing, ran 11.78 @ 115.

With a bigger cam 254 @ 050, Victor, headers, it ran 11.65 @ 119 with no tuning & inexperienced driver. Idles @ 800 rpm in gear with 48* idle timing.
When leaving the dragstrip, the owner offers Holley owners gas in case they are running low...

LeMans