Technical Carb Swap for 1979 Fiat X1/9

[MarkoFiat1979]

Hello: I have a 1979 Fiat X1/9 (1.5 L). Ordered a new new Weber carburetor (listed as # 18890 244). They told me for sure this is the correct carb for a 1979 X1/9. Tried to install the new carb but there are some differences from the old carb. Any help on how to modify/install would be appreciated. Thank you!

 

[sledgehammer]

Hello: I have a 1979 Fiat X1/9 (1.5 L). Ordered a new new Weber carburetor (listed as # 18890 244). They told me for sure this is the correct carb for a 1979 X1/9. Tried to install the new carb but there are some differences from the old carb. Any help on how to modify/install would be appreciated. Thank you!

If its different, how is it different?,( I'd take it back) even if the jets are different to your original one you're gonna run into running problems but you could swap those out.