I must be honest - I've never seen a reliable pulasr running 400 on std intenals!

Even if you could get the fuelling spot on, which I would presume involves a management change, it's gonna cost you a fair amount to run that close to the limit....................

Agree with you on the other stuff though - our one is similar spec to yours, and goes like shit off a shovel - nothing in it to 130 with my 2wd saff whilst rolling. Off the line, I claim I miss the start