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Old 01-22-2021, 01:08 PM   #4
LT4 650
 
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Drives: 2018 ZL1 1LE M6
Join Date: Aug 2018
Location: AZ
Posts: 175
Quote:
Originally Posted by KingLT1 View Post
Flex sensor and E85 tune would be my stage 1 mod. Then CAI and Headers. Pulley would be last. The LT4 supercharger just hammers the tires with torque when you pulley down. Plenty of power to be made on stock boost with other mods and it will be more efficient.
Quote:
Originally Posted by Z OH 6 View Post
I agree flex sensor and E85 and tune, too easy to make good power if you have E85 available.
Thanks for the response but E85 is not really available (one station and it is far)...I do have access to 100 octane but it is $8.29 a gallon. Otherwise we have only crappy 91 octane here in AZ.

So to my original post if I want to start with pulley and headers...which would be the best route? UPPER or LOWER pulley???
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2018 ZLE - M6, Nightfall Gray

GM previously owned:
2014 SS M6
2014 ZL1 M6
2019 ZL1 M6
2016 Z06 M6
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