4-1 or 4-2-1 header...?
#3
RE: 4-1 or 4-2-1 header...?
What exactly does that mean? Low-end meaning lower RPM and 0-60 and high-end meaning higher RPM and top speed? In a 1/4 mile run my RPM are only below 4000 for like the first 2 seconds (if that).
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curlybandit
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