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Thread: 454 backfire
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Old August 24th, 2011, 07:14 PM   #9
Hole tester
Join Date: 05-06-10
Location: muskegon,mi
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run rich all the time

it does have a exhaust leak at y pipe on both sides
ive run a sb tbi with out exhaust before with out problems but ill try to see if it fixes it

will backfire many times till u let off
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