Roush also had a intake manifold on a 5.0 that had a 4 hole inline throttle body like the old Autolite inline 4bbl that could be had on the Boss 302 back in 1969. They had it on display at the Indy car race they had at Barber's here in Birmingham. I'd like to see that thing show up somewhere too.
the carbs looked like this: Talk about RARE!