so i got a stock puch and i put a biturbo on it and when i hit about 20 i could feel it get into range and kinda zoom alittle to top speed. I put a hig hcompression head on and then it just feels smooth all the way up. Is that normaL? do i have to port to get more use of the biturbo or what?

Re: powerband

No, the biturbo is tuned towards higher rpms. It is pretty normal if it doesnt kick in till 20.

Higher compression benefits low end which is why you have a good balance of power.

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