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Discussion Starter #1
Please help me understand what timing changes happens in a 4.00' stroke cam, (ex. TW6-6), when it is used in a 4.375" stroke motor?

What are the new 4.375" cams , (ex. RR525, Andrews 54) changing to accommodate this bore size?

thanks
Dave
 

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The new cams are just that new cams and they are designed to cover a wide range of applications and motor sizes, of course a good tuner / builder knows better how to exploit the design benefits of the cam by getting all the connecting hardware and software dialed in to optimize the results.
 
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