What's the rest of the combination going to be? I have no feel for why a dual plane like a Performer RPM would be better or worse based on your description so far.
Yes, the Trick Flow RB intake is tall, 6+", plus it'll be raised even higher w/ the Stage VI heads. That's definitely a "top end" intake, especially for 400-ish cubes. I run one on my RB 452 which makes peak HP at 6800.
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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