My 422 smallblock build

Not scared at all, just don’t see the reason to use a manifold that is designed to produce power between 4000-8500when the majority of my driving will be between idle and 6500. Am I missing something here? If I planned to bracket race this car sure as **** I’d sell the dual plane and slam a Strip Dominator on it and hold it to the rug. I thought the dual plane would be perfect for my intended usage. Would a single plane make a few extra hp at max rpm? Almost definitely. Will the dual plane outperform from idle to 3500? I’m betting so.

Yes you are, you're building a 422 with a 4" stroke not a 344 with a 3.31" stroke. Every 4" stroke engine I've been around had gobs of bottom end unless someone made a bad decision choosing parts. My 408 ran a victor with a 260/264 @ .050" flat solid and pulled everywhere. I shifted it at 6400 as it went no faster shifting anywhere above that.

Even my 340 with a Weiand X-Cellerator single plane and a 236/242 @ .050" hydraulic pulled well down low. I'm not a fan of dual plane intakes.