In an ideal world we'd be able to buy good ethanol free high octane gas at the local pumps,but we can't generally.So here's my question.What octane should one use in a trail ported SRX engine with shaved heads and bored carbs? Jetting will play a factor too I know but speaking hypothetically what should one use? I've researched commercially available octane boost for hours and found there's only a few readily available that truly raise the whole octane point,but I also saw a product called Race Gas that will raise the octane of regular 87 unleaded to something like 105,depending on the ratio. I haven't looked into the components of Race Gas to see what it's made of but I'm sure there must be some potent ingredients to be able to claim such high numbers.
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