Looking for advice, BB headers vs. HP manifolds

aaronk785 said

I would do at least 2.5 pipe all the way out the back. 3in. would be better yet.

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IT's only as good as the collector size. No point in my opinion in running bigger than collector diameter. On the flip size of that I do not agree with the concept of chocking a 3.5 collector down to a 2 1/4 or 2.5" either.