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Have a 1969 428cj. Need to know what size jets go in the carb. Car is running rich when four barrel kicks in.
 
G

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if you have an original carb for the 69 428 cj Carbs #R4279 and R4280
66 primary 79 secondary
How have you determined that it is running rich when 4 barrel kicks in?

Greg B
 
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