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40mm FCR jetting on hot 440 XR

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Sure it has been posted somewhere so forgive me. Have a customers 460cc (440 with 4mm stroker crank), head is ported, 1mm oversize valves and Web 479 cam. Actual compression is 11.5 and has a Yoshi exhaust. Need to have a good starting point for the 40mm FCR carb conversion. Any help is appreciated.

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I have 40 fcr bought from satmike in Utah,think its from an xr440. 148 main,35 pilot,should get you close. Havent used it yet,going to try soon,with 440 piston and stage 2 cam and pipe,ice is coming soon!

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I have 40 fcr bought from satmike in Utah,think its from an xr440. 148 main,35 pilot,should get you close. Havent used it yet,going to try soon,with 440 piston and stage 2 cam and pipe,ice is coming soon!

Small World SatMike from Utah.Is coming down to Baja to ride with me for month or more.

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