My class has very strict engine rules. No port work, 416 casting heads. 56cc heads, zero deck block. 1.94, 1.5 valves. 327 350hp cam. Eagle crank and rods, forged pistons. All stock style replacement. 500 cfm 4412. My class is allowing the 602 to compete with no modifications to the open engine rules. Should I switch to the 602 or is my engine as good if not better?
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