My car has had Webers its entire life and has been running on a new set for the past four years. This time the three-progression hole version. They tend to run rich in the idle circuit and are a bit fussy at low rpms. A friend suggested that I add oxygen sensors just behind both of the header collectors and use that as an additional method for tuning. What do you think about this?
If you use 48 IDA Webers, what Emulsion Tube and Jets are you using? My main venturi is 37mm. Are you satisfied with it? My motor was rebuilt and is no longer stock, so there will be differences in carburation needs, but maybe it helps me make decisions.
