Vavuum Lines Question ....

[Sodbuster]

Are there any vacuum lines that are prone to deterioration other than the ones going to carbs 3 & 4 ??

[1fastbob]

#6 located on the left rear has a vacuum line that goes to the fuel petcock. If that one gets cracked the fuel will not flow into the carbs.  I would also replace the vacuum plugs on the other carbs.