Ford's front-mounted distributors are an impediment to a front air entry on an intake manifold. Edelbrock's XT bends to the passenger side for this reason, leaving just enough room for a shorter, small-cap distributor. Mallory builds the shorter, billet, electronic pick-up distributor at right for Edelbrock. It's part of each XT intake-electronics-throttle body carburetor-conversion kit. Mallory's standard Ford large-cap distributor at left shows the size difference.