This is a brand new genuine Weber 48 IDA 4 carburettor, part number 19030.015 with inlet manifold to fit the Mazda RX7 13B. The manifold is not suitable for earlier engines. Fitted with 58mm airhorns & the following settings. Vents 4.5, Mains 135, Airs 120, Em. Tubes F7, Idles 70F10 Pumps 50, N. Some changes […]