5 Gallon Pail; 112 (R+M)/2 Octane; Designed for compression ratios up to about 15:1 in small block V8 race engines and higher c/r in smaller comb-chambers. A popular choice for 2-stroke race engines.;
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5 Gallon Pail; >118.5 (R+M)/2 Octane; For drag racing applications; large cubic inch, carbureted-style nitrous engines.;
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