you should have a vacuum port on the manifold behind the carb, that is where it hooks. if not then just hook it to any manifold vacuum sorce. if it is a stock cast iron manifold it should have the port on the manifold or a place you can screw one in. good luck.
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85 C10 350/700r4
HOLLEY STREET DOMINATOR IANTAKE
EDELBROCK 1406 COMP. SERIES CARB.
HYPERTECH POWER COIL
FACTORY HEADERS
MAGNAFLOW CAT/MUFFLER/3in. EXHAUST
3.42 REAR GEARS
PROTHANE SUSPENSION-TOTAL KIT
and still going
"thats my toy"
Jeff Dodson
Angleton,Tx.
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2004 Silverado Crewcab (Dark Spiral Gray)
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