Chevelle rear suspension

[jake72ss]

OK First off I am not schooled in all of the kinematics and lingo and abbreviations associated with suspensions, but I do have a basic understanding of this stuff. I have been trying to figure out why there isnt more options for chevelle owners in the rear suspension department. I know that compromises will have to be made to package without turning the car into a two seater. Mostly I would like to improve the rear suspension, I don't expect perfection only improvement. The way I see it there are only a few options, either stock configuration with aftermarket parts, or add a watts link or panhard rod with the stock configuration, or the only aftermarket kit that changes the rear geometry which is a truck arm setup.
I have heard lots of people flaming on the truck arm set up, It seems like a tourque arm would be a natural fit. Like one similar to a maximum motorsports kit for a fox mustang, Or maybe a steeda 5 link for fox mustangs. What would be the tradeoffs of a torque arm? From what I can tell the Widow Maker's rear link arrangement is very similar to the steeda 5 link. My main concern is being able to do any modifications and still be able to keep the exhaust coming out in the stock location.

Please give me some input on this, Thanks
Jake