carter YF carb jetting specs

hello, i would like to jet my carb to run at 4300-6000 ft above sea level.
i know that it has a main jet, metering rod, and slow jet.
does anyone have a altitude jetting sheet for my carb?
also does anyone know where to buy jets, and such for this task?

thanks for your time, josh

i have searched and found not really what i was looking for...

 

parts book shows three metering rods:
standard
first size lean
second size lean
unknown on availability anywhere

 

http://earlycj5.com/forums/showthread.php?t=45366&highlight=metering+rods

 

I can help you with this but I need to know exactly what Model Carb you have, Is it a 938SD or an older unconverted SA or SC model? Is this for the 55 CJ5 shown in your post?
For the 938 SD Model , The Main Jet size is .0935 , Idle / Low speed Jet is .028 , The Standard Rod dimensions are .0655 * .057 * .04725 , The One Step Lean Rod dimensions are .070 * .063 * .056.
You dont want to change jets if you have the .0935 Main and .028 Idle / Low Speed installed now, You want to change the Rod first.
A One Step Lean Rod will decrease the fuel flow area of the Main Jet about 15% compared to the Standard Rod throughout the range, You should not have to change the Idle / Low Speed Jet for your elevation. But it would be worth trying the .027 if the One Step Lean Metering Rod runs well. For reference going from .028 to .027 reduces fuel flow area 7.5% and going down to .026 reduces fuel flow area about 15.9% .
The immediate elevations where I live are comparable to yours on up to 8000, I run a One Step Lean Rod in mine and it does well up to that.
Do you know what size main jet you have and is there a number on the Rod.
You can PM me