11-08-2009, 10:26 AM
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CC Member
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Join Date: Aug 2006
Location: San Diego,
CA
Cobra Make, Engine: SPF1715, Roush Built 434 ci Stroker, Dart Block, Ported AFR 205 Heads... 561 hp / 547 tq, Former Roush Show Car, Completed and Prepped By Olthoff Racing.
Posts: 1,066
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Not Ranked
I blend about 3 gallons F&L 111 to 10 gallons 91 pump gas. I played around with ratios, and this works well for me. I used straight 111 and the car ran like crap on the top end. I talked with Roush and they said to decrease the octane, and it ran fine. I was getting a little run on with straight 91, which went away with the blend.
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