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Ok, I had major problems with my sled holding rpms after 80. it I had the stock 35 belt on it. I blew that and accidentally got the wrong belt which is a 44. It runs great, except out of the hole! Is the 10-4 upgrade worth it? I have heard that alot of people have just started running the 44 belt because they work better. That is the stock belt on the 06. It made a huge deal on mine but now it wont come out of the hole and it used to come out of the hole awesome and run out of rs at top end. Now it is opposite. So someone said the 10-4 would help the next says it won't make a difference.[?]
 

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I did the 10-4 update with the belt,i run 78 gram dalton weights and a teal spring in the primary,and my sled rocks,but i have a little more done to the motor also and a few other tricks,but my good buddy did the same clutching with a stock motor and it works awesome also,hope it helps..i run consistent 7850-7910 on the tach and comes out of the hole like a jack rabbit.
 
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