Thread: March pulley question for my GT.
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Old 04-07-2004, 04:32 PM   #5
explicitone
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Join Date: Apr 2002
Location: racine ,wi
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Originally posted by xxxBlakexxx
I have wondered the same questions. What does SFI mean? I know we should avoid pigg-back. What exactly does that mean?
SFI is a saftey rating used in most racing bodys
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Novi 2000
60' 1.46
1/4 10.67
mph 126.5
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