After asking a number of questions here on this topic years(?) ago, I decided to use these parts when I had the valve body off before my trans went in w/ the engine: https://www.sonnax.com/parts/1851-accumulator-piston-kithttps://www.ctpowertrain.com/sonnax-new-hd-enhanced-performance-valve-body-accumulator-spring/
2021 Challenger 6.4L Scat Pack 1320
100% stock: 1.680, 11.894 at 113.75 (DA 175 ft)
weight reduction, wheels, tires, Hellcat air box: 1.661, 11.686 at 115.97 (DA 710 ft)
1973 Challenger 452 ci street/strip [2008]
pump gas, DOT radials: 1.454, 10.523 at 126.44 (DA 514 ft)
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