Torsion Bars

I realize there's a very recent torsion bar thread, but I do not want to bogger up his thread with my questions, so here is my thread.

64 Valiant slant six. I have a Addco 1 1/8" front sway bar installed now. I will have a 7/8 rear bar installed before long.That MAY prove too much and if it is, I'll snatch it off. We'll see. I have new regular replacement gas shocks all the way around. However, hitting bumps and low spots in the road, the front end does bounce more than I like. I am certain the factory torsion bars are about shot.

That said, Do yall think the PST 1.03 bars would be overkill? As most of yall know, I have a 400 swap planned. Although it may not come to fruition, I want some bars that can handle it too and I feel sure they can.

So what do yall think? Thank you for any and all advice.
I had them on my 63 valiant with a 360 magnum and it worked nicely. I thought they were significantly cheaper than most as well.

Jake