too much DIY to
think about cars....
Join Date: Mar 2007
Location: United Kingdom
do you have the alfa 33 16v workshop manual?
on pages 1116 or section "04 D" onwards it describes how to set these up... its a bit tricky by the looks of it, and you need a manometer according to the book.
if you have not moved the air bypass screws from factory settings i dont think you would go too far wrong by disconnecting the linkages that link the two throttle bodies, then let of the screw that adjusts the throttle postion, so they are completely closed, (on both throttles) then try screwing both screws in so they contact the lever and then by say one turn both sides. then reconnect the cross linkage and make sur that there is equal " slack" in bothe sides so that the two trottles are opened at the same time.,, the trick is balance everything
thats a bit of a starting point i think rather than a definitive guide, as i say the workshop manual explains exactly how to do it but u need a manometer ( £50 ish quid if you get really stuck )