YF running Lean

mugsy

Famous Member
Hi All,

I have a '69 YF carb on my 200 in a '65 Mustang. I also installed an Edelbrock A/F meter. The meter reads lean at light throttle and/or cruise speed. I mean its off the scale i. e. greater than 15:1! :shock: I do not have any info on the inner workings of these carbs. What controls the cruise gas flow thru the carb? I see that there is a "jet" plus the metering needle. Any pictures, links or suggestions as to the inneer workings of the YF would be appreciated. I do not want to start drilling out jets, etc.. without knowing exactly what is going on!! :D

tanx, 8)
Mugsy
 
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