If it weren't for the valvecovers, at first glance you might mistake this for a Ford because of the distributor up front. But there's a very good reason for this type of Chevrolet blasphemy. In the classic setup with the distributor at the back of the block, the distributor is driven by the camshaft at the rear, while the camshaft is driven by the timing chain at the front. This means that any flex in the camshaft also affects the ignition timing. By moving the distributor to the front of the block right next to the timing chain, any chance of this happening is practically eliminated.