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popping above 4k

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Old 05-01-2012, 06:29 PM   #1
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Question popping above 4k

i have a 370 in my car was running w 11's at the track one night and halfway through a run it started popping around 4000 rpms i brought it home drove normal on the streets changed plugs same thing changed coils no difference WTF is the problem?
cam only/full bolt on's
400-375 through 4L60e yank 4000
new#'s coming
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Old 05-01-2012, 06:29 PM
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