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#1
March 30th, 2014, 07:28 PM
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305E Vacuum Readings
I just finished putting a 500 Holley on and was setting the idle jets with a vacuum gauge. The most I could get was a whisker over 15 in vacuum at idle. The motor has about 800 miles since complete overhaul, and I was using a SnapOn gauge. Does that sound about normal for a 305? Thanks, Dave
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#2
March 30th, 2014, 10:50 PM
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Re: 305E Vacuum Readings
Seems low Quigley, I have about 20 on mine, stock except the Holley.
__________________
1961 GMC Suburban 305A Overdrive 1962 GMC Utility 305D
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