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compression question for 355

961 views 2 replies 3 participants last post by  onovakind67 
#1 ·
Hey Guys. I have a 11:1 compression 355. right now it has 64cc double hump heads on it, but i am gonna upgrade to dart iron eagle heads. 215cc intake runners. i was wondering what my compression ratio would jump to if i use the 49cc head over the 64cc head? thanks.
 
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