[55blacktie]

Was the engine running with the 2-barrel carburetor and intake manifold in place? The easiest and cheapest thing to do would be to put the 2-barrel intake manifold and carburetor back on the engine. Rebuild the 2-barrel carburetor if necessary. Your stating that the "cylinder caps" are different, I'm assuming that you mean that the intake ports are not stacked, one on top of another, but are inline, side-by-side. This could limit your intake manifold choices, but I don't know what's available in Argentina for your application. If you are determined to use the four-barrel carburetor, you will need to find a dual-plane, four-barrel intake manifold that has the same intake ports as your cylinder heads ("caps"). In the meantime, you might want to look for internet articles that explain the differences between dual-plane and single-plane intake manifolds and how or when they should be used.