Item is located in NY
Im not sure why you would need a spacer. I dont have a mustang I was using this throttle body on another car. It fit fine and worked for me
Wilson Manifolds 80mm throttle body
Ford style square flange
Comes with TPS, gasket and throttle cable
Has a hargett clamp flange welded on it but can be cut off or replaced easily
Asking $200. PM if interested