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Making a combo

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Old 02-07-2004, 10:36 AM
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How would a set of 5.3 heads ported and polished w/ 3 angle valve job shaved .020 work on a 5.7. Too much compression? Or would it be an animal?
Please give me your input.
Old 02-07-2004, 01:34 PM
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Not sure what the compression bump would be with .020 off but my untouched 5.3s are at 11:1




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