I know exactly how u feel, i tried to get my trusty 32/36 webber to run on my turbo, but to no avail. I know use a 350 holley, and i highly recomend using a holley as oposed to the webber, can't exactly remember the jet size, i think it was a 'number 6'? You need solid floats otherwise the plastic one get crushed under boost, i run mine on 9 psi because of the new motor but i have wound it upto 15psi and it worked quite well,took it round the block and it performed very well, then turned it back to 9psi.

Hi all,
i upgraded the lovely 120y with a t25 from the td04l (basically from lancer turbo to nissan one)
Carby 32/36 weber downdraught
now problem being it leans out around 5g onwards has any1 played with this b4. an can help me out.
its a blowthrough setup on an a12 running only 10psi atm (i wanna run 15 but having trouble running 5 atm)
electric fuel pump plenty pressure
carby jets drilled out excessively