They all have the shroud, it is there to direct the air from the fan so it flows all around the barrel. If it is a runner you are way in front. The shroud id rounded off on the front right hand corner and it is also about 50mm higher in the rear so the fuel tank can sit above the carby because it has the straight manifold. The offset manifold can be fitted and then you can use the standard setup which is far easier to obtain and I have truckloads of that stuff
