Abe Posted August 11, 2015 Report Share Posted August 11, 2015 Local choices I have are 93octane w/ 10% ethanol blend or 100% gas 89octane. Seems the 89 would be the better choice having no ethanol but I'm no expert so seeking some others advice. Motor to be ran in is a mild/trail port 4mil and shooting for 145-150 psi kicking pressure at 1100asl Quote Link to comment Share on other sites More sharing options...
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