Why stop at 4.25? Is a 4.5 stroke on a 4.120 bore really too much for a 389? 480 cid lower revving torque monster or is the bore/stroke/rod ratio really that bad?
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Illinois Outlaw Gassers
6.27@107
9.97@131
Last edited by Bill Eveland; 10-13-2011 at 04:23 PM.
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