coilover on stock front a-body?

Ya that's gonna be part of my issue is the weight. I got a 72 demon that is getting a 2010 6.1 hemi. And it used to be a 6cyl car so I kno the torsion bars won't take the weight

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We ran the stock 318 belvedere torsion bars on the hemi car for yrs. and never had a problem, it ended up being a drag only car tho.