not a lot of traction need to hook w/ 500hp. My old 67 coronet cut 1.65 60 foot and ran 12.0's @114 on factory HP springs and 28.5X10.5's. The new car should be in the high 1.50's on stock HD springs and 275/60/15's. Nothing fancy needed and I'm over 500. buddy's old 69 coronet ran high tens on his old whooped 318 rear leaf springs and traction bars. That's another thing, to get a decent tire on an a-body you have to start cutting.

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Not too much of a problem in B-Bodies as you stated above. They are somewhat heavier than the
#3000lbs posted in the thread. B-Bodies do have MORE weight to shift to above the rear axle upon acceleration!! Especially with 500hp 440 packing a truckload of torque to do it with!! If it was in a 3000lb chassis, wheelspin city, unless the chassis was tweaked to handle the output. Lighter chassis, don't need as much torque down low in the range to move it out.