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boost on 4.3

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Old 03-10-2009, 02:45 PM
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Cool boost on 4.3
how much boost will a stock 4.3 hold and still run on pump gas
 
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Old 03-10-2009, 06:59 PM
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Having 9.4:1 compression should mean that you can take about 5-8psi safely on pump gas. Get up over 10psi and you have to have very good programming to keep it from detonating on 93 octane and even then it is not a sure thing.
 
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