06-22-2017, 10:08 PM
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#89
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Drives: '17 2SS convertible'20 Yukon Denali
Join Date: Nov 2011
Location: Cedar Park, Texas
Posts: 3,048
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Got this in an email yesterday. Interesting alternative. I didn't know Holley made these. They're claiming big gains.
http://www.jegs.com/i/Holley/510/223...=EmailCampaign
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Richard
2017 2SS SIM convertible, A8, NPP, MRC, 56R wheels, GM CAI, Diode Dynamics Side Markers, Mamo Throttle Body
Delivered: 08/15/2016
#TeamBeckyD
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