What are these?

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Darth Plasma

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Joined
Sep 6, 2018
Posts
167
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186
Location
Pennsylvania
First Name
Nathan
Truck Year
1987
Truck Model
V10
Engine Size
350/SM465
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The first vacuum line was always like that, it is connected to the brake pedal assembly. Is that for cruise control? The second one coming out of the intake was flapping in the breeze and creating a major vacuum leak in the engine making it run like sh*t so I stuck a bolt in it. Looks pretty important, is that for the air pump or something? The TBI is from 1990 I believe and doesn't have any cruise control parts, air pump parts (all removed by PO) and it has headers on it. Thoughts?
 

bucket

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Usually not in Ohio
First Name
Andy
Truck Year
'77, '78, '79, '84, '88
Truck Model
K5 thru K30
Engine Size
350-454
Those are for the rare canooter valve. Lol, just kidding. Those were both for the cruise control servo.
 

gotyourgoat

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NRV Virginia
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gotyourgoat
Truck Year
1984
Truck Model
c10
Engine Size
smokin' 305
What are vacuum tubes filled with bolts for $1000 Alex?
 
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