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Member
Join Date: Nov 2003
Location: BOSTON
Posts: 151
Likes: 24
Liked 25 Times in 9 Posts
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Is there a formula when going from conventional collector's to a merge in reference to shortening the primary tube by how much to start on a 1 5/8" x 33" on a 4-1 header low HP Low RPM V8 - Thank's in advance any input is appreciated
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