Hemi 4 Speed?

hi, they can be shifted up or down by double clutching . which is, shifting to neutral clutch out, blip throttle, goes right into gear. this works fordown shifting. upshifting just pull into neutral, clutch out momentarly, clutch in then shift. A real stick shift guy knows howto do this!! I've drivin my slick shifted trans this way for bout 30 years. I learned how to shift non syncro trans back when there wasn't any!!!!