so I've been reading a lot and it seems like the best manifold to get is the Full-Race or port and polish stock. But I would like some advice, I have cosworth 272's on my evo ix, a tune and arc intake box other than that I'm pretty much stock. Would it be a good investment to get the Full-Race prostock manifold? I can spend about $1000 for my next upgrade, what other options would you guys suggest instead?

 

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