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Discussion Starter #1
I want more pull on the top end what changes can I make? I tried a 52/40 helix and changed the wieghts and spring and was at 7800 rpms but it just goes to 110 and won't go any faster.
 

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What was the full throttle top end rpm stock,that is were you have to be for top end rpms or down a couple 100 from stock.
 

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Discussion Starter #3
the rpms were at 8200 now I have them at 78/7900 but she just stops pulling at 110 it's tapped out in about 3/10 of a mile I'm looking for mor pull like 118mphrpms are at 7800 any gearing changes I'm going to try 23/38
 

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I don't know about top speed, but a buddy of mine used 64 gram weights, beige spring in the primary, and 41 tooth gear on the bottom, and that thing rips your arms out of its sockets. His 02 700 flies and his top end is 114 mph on the speedo. He is gonna try 66 gram weights and a heavier secondary spring, if we ever have snow
 
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