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Old 06-05-2017 | 08:05 AM
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Hobbsy
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This Webra T-4 87 used crankcase super charging but used one way valves on each side of the engine. The standard T-4 87 had plates over the crankcase ports.
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Last edited by Hobbsy; 06-05-2017 at 08:11 AM. Reason: Add content