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big bore or not??

2090 Views 17 Replies 7 Participants Last post by  ChrisR112
i have a 400ex but am thinking about maybe upgrading but should i go with the 426 or 440 or stay at a 400 and build the machine up with other aftermarket parts??
im open to any suggestions
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so whats the best thing to do if u got a big bore 440 to make it last longer?
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