Big Block Exhaust Manifold Comparison?

4mulas said

I think the reality is that this manifold will choke the **** out of the engine and easily make it lose 30 horsepower but I can’t say for sure…

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People often forget one thing. The cylinders aren't firing at the same time. It's not like that's not TONS of room for one cylinder to fire at the time. You're working with pulses here. Dissect one and you'll see there's a good bit of room there.