Six cylinder torsion bars with big block

You always need to look at the intended usage. If you are drag racing, doing everything to zero in on that purpose, will put you on a trailer as it will not be cost effective to run it on the street. Same for a road race car. And anyone who does not think an experienced driver can't spank you at the track, good luck with that. A friend of mine, driving an 80's Corvette, had his clock cleaned by a guy driving a Chrysler Minivan. Another good friend was lapping Porsches with a 4th generation Mustang at Summit point. The hardest car to build is a daily driven street car. Each of us has certain criteria not necessarily the same as the next person. I love a real good handling car. I want it to start up and drive all day for 2 days straight from Stinking Maryland to South Dakota. I want to beat 90% of the cars I encounter in the corners and straight line on the street. I want decent mileage and have found that I can have all that. Formula S Barracuda's handle well, even with all the original springs, torsion bars and sway bars. All bushings, ball joints, arms, tie rod ends, and manual steering chucks are up to snuff. Let's not forget good shocks and tires. I would never consider running /6 torsion bars for what I like. If I wanted a limited street, more of a strip car, that would be a different consideration. I've seen "theoretical" arguments but in reality, experience is more worthwhile. I have a 96 ACR neon that handles amazing, but I have no "transition" when I get in the 66 Formula S or the 68 383 Formula S, except at low speed with the 16:1 manual box. Performance is not cheap, get the good stuff and build to what you want. If you find you want something different, you can always change things easily on our old cars. Most of have done that for decades.