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I currently have a 351 with an intercooled Novi 2000. I maxed out my HPX slot meter in a 3" tube so I upgraded to a 3.5". This tube runs from the Garrett IC to the tb. I never have upgraded the tube from the Novi scroll to the inlet of the IC. The pipe is still 3". The inlet and outlet of the IC is 3" on both sides. It is a 30"x 18"x3" if memory serves me. Packaging is a little tight down there where the tubing connects to the IC even with 3" pipe. Would it be worth my while to go ahead and upgrade to 3.5" tube like what I have from the IC outlet up to the tb? Right now I'm seeing aproximately 14-18#'s by 5100 RPM depending on the temp outside.
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