OK -- having just spent some quality time this afternoon working around my intake rails (ugh), have a simple question: Why did PhD's at Peugeot et al find it necessary to use intake rails vs conventional shaped intake manifold? Have seen Bosch fuel injection on other makes without upper air assembly, so that can't be only reason. Is there a performance advantage to big air drop into the heads? (note this happens BEFORE fuel is mixed, unlike tunnel intakes that stick carburetor half way out of hood). Just curious (it would be SO much easier to work without intake rails in the way). Bill Robertson #5939