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Old 07-08-2015, 05:22 PM   #16
Redline novdog
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Join Date: Jan 2012
Location: Washington,Il
Posts: 632
Re: carburation system

The 305 heads are supposed to bump compression ( 1/2 c.r.)? If they are not the 1.94 or 1.85 intake heads or ported,then all is mute. A performer intake and that carb wil help MPG. If you want fuel mileage then start looking at fuel injection.
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