Hi Jim,

I'm affraid I'm with Stu on this. I really do like these boost controllers BUT, and its a big BUT, I've yet to fine one that copes with holding boost levels of 30psi upwards.

So personally for now keep with air injectors, OR if you're still undecided I can map T4's on an amal valve well enough to work perfectly well. (It's all in the jetting folks, so anyone who says it can't be done is wrong!!)