The two-barrel manifold shown in Leo's book was never put into production. The 292 was offered some years with a two-barrel carburetor but it had the integrated intake manifold and cylinder head.
The only GM two-barrel manifolds for the Chevrolet 250 similar to the picture in Leo's book were made in Brazil till 1992 for the OEM Weber DFV446 and Solex H34 carburetors. Note that the axis of these Brazilian manifolds' two-barrels are angled ninety degrees to the engine.
The American Chevrolet 250/292 series inlines were not supplied with throttle body fuel injection. The Brazilian 250 was offered with port fuel injection from 1995 to 1998.
Some have fitted GM throttle body fuel injection systems from other vehicles, such as the Chevrolet Astro Minivan 4.3L V6. Also, though not inexpensive, the Holley Commander 950 Throttle Body Fuel Injection Systems can be installed, either the Holley 950-19S or 950-20S.
Last edited by Winter; 09/21/09 08:19 AM.
