For some reason my spedometer will either bounce or drop to zero when ever i step on the gas in 5th gear. I have no idea why this would happen so if any information or ideas about why this would happen would be very helpfull.
Thanks
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91 Z28 305cui
5-speed
G92 performence package
SLP 1 5/8" headers w/y-pipe
Flowmaster 80 series muffler
K&N Fliters
MSD super conductor wires

 

ur sensor might be going out or u may have to get ur speedo recalibrated

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3RD GENERATION IROCS RULE!