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ok, i'm building my y8 to about 12.6:1 compression. but before that my my piston developed a hole in it. i have 3/4 of 87 gas in my tank. how do you guys propose i get that gas to become 92+ octane. should i add octane booster or drain/suck the 87 and add 92.
 

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I had the same dilema...in the EF there's a drain plug on bottom of tank. i drained out as much as I could. Filled it up with 94 octane (in PA) and then put 1/3 can of NOS octane booster just for the heck of it. It's gone now because i've fully filled back up on 94 but my pistons are fine! I have 12.25:1 comp in y8

Vince
 
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