Thread: Holley 4150, 700 DP question
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08-16-2010 10:00 AM #1
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Holley 4150, 700 DP question
Hi, Is a 5 size jet change, a large change when it comes to jets? My carb came with 69 primary jets, and 78 Secondary jets. I ordered 64's and 72's. Is this a big change?
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08-16-2010 10:43 AM #2
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It really depends on your engine
Buying parts I don't need, with money I don't have, to impress people I don't like 
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08-17-2010 04:46 AM #3
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In my experience with Holleys and jet changes, you need to start with a baseline. Then go up or down 2 sizes at a time. Going 5-6 at a time can only make things more confusing .
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