[Woodz428]

Had a friend that ran a single one (the smaller model) on a Green '70 Boss 302, he wasn't impressed, except for the looks. They used the same inner parts as the 1 bbl carbs to cut cost some and to insure availability of most parts later on. They were the same bore spacing of the small block(4.38) to allow a straight shot into each cylinder of a small block (in this case the Boss 302).