RE: which % fuel in hyper 7?
Its been said before on this forum by Uberchav (an experienced hyper pilot), that the Hyper 8 port (if that's the engine you are using?), is shimmed for up to 25%, so I wouldn't recommend going to 30%, though I must say I do not know what the implications would be of doing so. Can anyone enlighten me regarding the purpose of shimming for different fuels?