hi all just in middle of making  inlet manifold for bike carbs for my 2l pinto do i need a pipe in inlet manifold for vacuum pipe from distributer 

if your dizzy has vac advance then yes you will need a vac take off on the manifold to get a stable vac for the advance you will need a take off from all four inlets going to a balance bar and then on to the dizzy a lot of fafing around easier to get a dizzy with no vac advance 

Edited May 21, 20224 yr by tractor

thanks for your help

Or just ignore the vac advance. It’s there to improve mpg and very low speed running. I doubt if in practice you would notice any difference. 
I assume you haven’t got a brake servo?

yes have a brake servo i have piped that in