Quote:
Originally Posted by unhappymeal
I have a ND Miata and it definitely pulls timing on 87 octane. The rated horsepower is on 91 octane. I'll try to dig up the post from Miata.net.
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You don't have to. Even then a jump to 93 or E85 should give a bigger bump with a tune. Looks like I have to rip more shit out of my car to make it lighter