Will dual weber 40 carbs fit your 1.8 8v engine?

Yes, dual Weber 40 carburetors can fit a 1.8 8v engine, but it will require some modifications. The stock intake manifold will need to be replaced with an aftermarket intake manifold designed for dual Weber carburetors. Additionally, the fuel lines and air cleaner assembly will need to be modified to accommodate the new carburetors. It is also recommended to upgrade the fuel pump to ensure adequate fuel flow to the carburetors.