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Old 04-07-2009, 11:47 AM
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convincor convincor is offline
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Cobra Make, Engine: FFR 390 toploader IRS
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it is all off the shelf parts. but they use the 390 truck piston which when run with the 390 crank keeps them deep in the hole and only about 8.2 to 1 compression.
390 Piston Height Information Needed
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Last edited by convincor; 04-07-2009 at 11:50 AM..
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