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holley 6 bbl question #919855 02/02/11 08:24 PM 02/02/11 08:24 PM
Joined: Dec 2010 Posts: 35 north palm florida united stat... M mopar0723 OP member
mopar0723 OP member M Joined: Dec 2010 Posts: 35 north palm florida united stat...	I have a set of hollys 6 BBL sitting on 440, They have all recently been done,plated rebuilt etc,etc, I hooked a vacum gauge to the center carb port the one going to the distributor, ( the higher port of the 2 ) I am showing 5 in of vacum @ 825 rpm. Is this normal I have been told there should be none or almost nothing, If wrong what is problem ? Thanks guys

Re: holley 6 bbl question [Re: mopar0723] #919856 02/02/11 08:37 PM 02/02/11 08:37 PM
Joined: Jan 2003 Posts: 25,783 Rio Linda, CA John_Kunkel Too Many Posts
John_Kunkel Too Many Posts Joined: Jan 2003 Posts: 25,783 Rio Linda, CA	Vacuum at the timed port at idle is usually caused by the throttle butterflies being too far open at idle, try closing the butterflies and using the mixture screws to set the idle. Is the cam stock? The INTERNET, the MISinformation superhighway

Re: holley 6 bbl question [Re: John_Kunkel] #919857 02/02/11 08:44 PM 02/02/11 08:44 PM
Joined: Dec 2010 Posts: 35 north palm florida united stat... M mopar0723 OP member
mopar0723 OP member M Joined: Dec 2010 Posts: 35 north palm florida united stat...	cam is fairly big but not shure what is in there ,I am assuming butterflys are closed, I look in and they seem closed, or ?

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