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10-28-2012, 09:25 PM
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#26 |
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Senior Member
 
Join Date: Feb 2011
Location: Corona, CA
Posts: 1,842
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Re: Holley 350 vs 500
Steve, one other thing not mentioned in the 6066GMC link describing the conversion, is the enlarging of the intake opening. You may have noticed the difference in the openings themselves.
Honestly don't know if it's really required or if there is a performance improvement, but matching them seemed the thing to do. Others on the Jolly site had mentioned it as well.
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MusicMan70 1961 GMC Suburban |
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