Quote:
Originally Posted by DUSHER
good point and I was just thinking about adding that. Would be happy to be around 500-550. Will be running 91 octane unless you guys recommend other wise.
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13 psi is about the max you'll be able to run on 91 octane. With the 9lb pulley and a 2.85 sc pulley, my car made 12.86 psi and 586whp on e85 with the same upgrades that you have. I can't remember what my 91 octane numbers were but was probably a little over 500.
I would go flex fuel. 91 and e85.