I need one...as i am pissed of re-jetting the amal...can only get 1.6bar top..no spike Fook me does it shift though 2nd gear just lights the Yoko's up in the dry all the way to the redline ...and it can be held at 34psi with the correct fuelling ...but i digress...what else EXCEPT air to air (dont want em) can i use..i have NO surge issues...i used to use the Jullian Godfrey controller very good indeed but expensive as i sold it all now.Is there a cheapish jap one which i can control the boost curve in each gear????...(SECS i dont care that the S8 does that )...how about a bleed valve i know Karl uses them dont he?