Thread: Upper, lower or both Pulleys?
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Old 01-08-2020, 07:25 PM   #4
JasonSB
 
Drives: 2018 ZL1
Join Date: Oct 2019
Location: Texas
Posts: 83
I have 15% overdrive and still have fuel left on 93. You could probably go with 18% overdrive and be fine.
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2018 ZL1 A10 - Rotofab Intake, LT5 TB, TSP Headers, ATI Balancer, 9.1 Lower Pulley, JMS BAP, Flex Fuel.
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