What rear suspension for bracket racing.

I'm learning a boatload of knowledge from this thread. I'm building a 408 with Trick Flow heads, and a big cam. I have an spare complete rear axle assembly to replace my stock 1970 8 3/4 rear. I'm keeping my 741 8 3/4, but modified with an Auburn sure grip. I know my stock 741 83/4 needs improvement, including rear disc brakes.. Help me spend my money for maximum value for putting my 408 to the asphalt. I have a Pat Blaise 727A torque flite, and am shopping for parts that will get it to hook. A kind member here showed me a 15' SBP wheel, which I've ordered. I'm not tubbing the car, as it's a numbers matching 70 Swinger 340 with the build sheet. I want to be able to run her hard, yet still put my original parts on her and get stupid money at Barret-Jackson when my kids sell it after I expire. I'm looking at ss springs and Caltracs. All opinions are welcome. Paul.
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If you're not going to put frame connectors on it then have tires that spin easy. The dart that is the picture in my avatar with a 340 automatic 4.88 gears tweeted the body so hard that it cracked my windshield and cracked the body on the driver's side down on the left side below the windshield.
I had 9 inch slicks on it at the time with an adjustable snubber and a 4800 or so TA 8in converter.