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dune goon

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alright so im a duner have a dune portes banshee bore .10 over fmf pipes making around 60 or 65 hp pump gas. so what is your guys opinions on overall dune/drag pipe will be small bore inframe

I'm betting it's more like 55HP

 

But more info is needed. Port timings? Compression? Maybe even list all your mods and parts........otherwise it's all just bad guessing.

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my wife's 350cc with t-5's did a solid 65hp on gigots dyno years ago when it was still a pump gasser....  it was a pretty simple build i felt.. 

 

fmf fattys arent to bad. if you want more ZING on top  get shear.  if you want a middle range top end'r  look at cpi.  both have issues.   i'd say even consider sniper...  

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