fabbihernandez15 Posted April 25, 2015 Report Share Posted April 25, 2015 cylinders are ported and bored .80 over i will be running stock cranks a stock milled head ,stock carbs and pro circuit exhaust i will not be running an air box but will be running individual filters i want to run 93 octane gas and castor 927 i want to mix my gas 4:1 I want to know what main and pilot jets i should use and what needle to use Quote Link to comment Share on other sites More sharing options...
98_sheester Posted April 26, 2015 Report Share Posted April 26, 2015 I hope that crank is welded and trued also but idk your sea level but start at 300 mains maybe 30 pilots would be a good start maybe but im not jet master Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted April 26, 2015 Report Share Posted April 26, 2015 ^ that's probably close. Maybe try 320, 310, and the 300. Definitely stick a 30 pilot in it and see if it will eat it. Run the castor at 32:1. That's what it's meant for. If you wanna be leaner try synthetic stuff IMO. But you say you wanna be on pump fuel... How much was the head milled & what is compression like? 1 Quote Link to comment Share on other sites More sharing options...
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