Thread: Adding big gulp and TB to boosted SS
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Old 05-15-2021, 10:12 AM   #23
KingLT1


 
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Drives: 2016 1SS NFG A8
Join Date: Aug 2017
Location: 46804
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Quote:
Originally Posted by 19 2SS View Post
I have the hpfp
That is your issue...you need the entire LT4 fuel system high to low. Just changing the HPFP gained you very little.
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2016 NFG SS A8/Whipple 2.9/Fuel System/Flex Fuel
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