You can see the disco would respond tons better for an autox car. The response cannot be touched. Def not from a 2871r. The 2871r will make a ton more power, but if you ask me, the disco would own it pretty bad when it comes to response. The disco I had made over 340whp on 18psi and 350wtq at 4500. It felt NA.
But for power? The 2871r owns, and it fits in the same location. Just dont mess around with the small housing. .86 or go home.