8 3/4 avle/springs/shocks question ??

Just finishing complete front suspension rebuild on my 70 Dart.

Next week I be removing the 3.23 pegleg third member and installing
A 742 case 3.9 sure grip

The car will be a stoplight to stop light, street sleeper/cruiser
At the track just to know et/60 ft

Plan:
2 left side Mopar SS Springs (less arch than right) for 3200 lb car

Screw type adjustable pinion snubber

I have KYB GasAdjust shocks on all four corners

Sticky Mickey's Street Drag Radials, Maybe Nitto's

Because I am such a cheap bastard, I'm considering clamping the new /6 springs from front to back. Yes, I know that it will be stiff and a hard ride which the KYB's will contribute to

Comfort is not an issue here
Estimating 550 flywheel hp, hoping for good enuff traction to go
11.70

Your thoughts ??

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