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SAFC-II, does it really help???

698 views 3 replies 4 participants last post by  peterhoang1988 
#1 ·
i searched but came up short..... i was wondering if having one really helps with power.....and what does it do exactly.....????

another question, does an adjustable cam gear also worth it???? and does that help also...???

thanks in advance to everyone.....
 
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