... the real advantage of the solid is higher rpm use to avoid valve float... From my experience running "similar" (not identical) cams of both hydraulic and solid flat-tappet, that's it. If there is any drivability difference, I've been too numb to notice it.
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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