Hi just fitted an adjustable regulator to my Zetec with twin 40's on what is the recommended pressure setting currently got it at 2.5 bar

About 45 PSI - sorry , no idea what that is in `bar`

45psi is 3.1 bar.

what regulator is it? what are the regulators adjustment range (i'm thinking about filter king and the like)

You're on about 37psi for webers, far too much, you need about 3-5 psi...

you mean its set at 2.5psi surely?? If so thats spot on for carbs - 2.5 - 3psi

Didnt spot that you are running webbers - I was thinking injection !
As above - 2.5 to 3 psi should do it .

Jeez. 2.5bar for injection. If you put 2.5bar through carbs you'll blow them to smithereens!!

sorry meant psi so is it 2.5 or 3.00 then