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Checking vaccum

gtx69

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Where on this can i hook a vaccum guage to? I don't have a port in the intake. HPIM0153.JPG

HPIM0154.JPG

HPIM0153.JPG


HPIM0154.JPG
 
Talked to holley said use any base port on the carb.
 
As it says above or you can use the choke pull off hose.
 
I used the port for the pvc valve showed 10 ilbs of vaccum at idle. 6 ilbs in gear
 
Have electric vaccum pump under fender for brakes for the last 6 years
 
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