If standard normal pump fuel is fine for it. I try to use Shell or Tesco as a mate said one of his jap crap mags did a test on quality and they were the 2 best supposedly I run mine most of the time on Tesco 99 or Shell V Power.

More power is easy enough through the likes of DreamScience, BlueFin, Code:Red etc for hand held units or for best results a custom map as the above are just generic for the ST not your ST if you get me? Hand held units are around £400-£500 I think.