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#2 (permalink)

05-17-2019, 05:15 PM

twobjshelbys twobjshelbys is offline

CC Member

Join Date: Jan 2009

Location: Las Vegas, NV

Cobra Make, Engine: Shelby CSX4005LA, Roush 427IR

Posts: 5,659

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What does your engine builder specify as the recommended octane rating? Unless your car is tuned for the higher octane you will not get any benefit.

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Tony
CSX4005LA

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