Dual Exhaust suggestions?

For a 1966 Coupe, 289 (rebuilt, 0.040" over, stock engine internals), original Autolite 2100, Pertronix Ignitor, stock exhaust manifolds, original 3sMT, I am looking for suggestions on dual exhaust.  Currently on it is the original (or original-style) single exhaust with transverse muffler.  I am not currently planning on converting to a 4V intake and carburetor.  

I am considering the Turbo exhaust available from most Mustang suppliers or the original dual exhaust setup with resonators.  Perhaps even the Flowmaster Delta Flow 40 series.  I would like to go with 2-1/4" pipes.  An H-pipe is a given, and original style turndown tips.  I am going to use the original style hanger kit.  Yeah, it's vanilla, but it's mine.

This is not a hot rod, nor is it a concours car.  It is my hobby, a family heirloom, a cruising car, and drive to work when it's sunny and not 100 degrees in TX.  I would like to strike a balance between free-flowing/obnoxiously loud and restrictive/super quiet.  Something to let onlookers know this isn't my grandmother's Mustang anymore, but avoid any brushes with the law for noise pollution.  I do live in the 'burbs.  Can anyone offer a description of how any of the systems listed above sound and perform?  

Thanks!  
Second owner
'66 C Code Coupe
(A Family Affair)

I tried the 3 chamber flowmasters on a '65 fastback and they sounded pretty good but mild.
I also tried the H-pipe dual exhaust with turbo muffler package from Tony Branda Shelby/Mustang parts and they are louder than the 3 chamber flow masters but still good on the street. No tickets or problems. Everybody likes the sound and you can hear it coming.... but it isn't obnoxious. I think you might like the Tony B set-up from what you say you want. I got the aluminized pipes so they'd last longer on my '66 A-code.  

I have the American Thunder Kit from Flowmaster on my 66. 2.5" pipe, H-pipe and 2 chamber mufflers. I like the sound OK but sometimes it gets annoying. What I don't like is the resonance at a certain RPMs that makes things buzz that never buzzed before. I would have went with the 3 chambered but I didn't think they would fit, too close to the axle housing to make the bend over the housing. The thing I liked about the system was it made the 347 stroker come alive over the 2" pipes and Flowmaster copycats I had. No tickets in 2 years ( for noise ).  

Cushman350. Thanks again for past tip on Justice Bros. products. I got some and it helps. I also got some of their radiator/coolant additive while I was at it and it  helps cool my car down on hot days with the A/C on. BTW: It turns the coolant from green to blue. I like the look!  

Jbirch:
Cushman350. Thanks again for past tip on Justice Bros. products. I got some and it helps. I also got some of their radiator/coolant additive while I was at it and it  helps cool my car down on hot days with the A/C on. BTW: It turns the coolant from green to blue. I like the look!

I'll have to try it. I've used Water Wetter by Redline back before the alum rad and it worked a little but it said it worked best with just it and water, no antifreeze (racing application)but also with coolant but not as efficient. I didn't like that but it may be that way for all additives. Today it was 105 here in Texas. Didn't drive the Stang.  

Was 102 here. Didn't drive my 'stang either.