I still have one of M (mugen branded) onroad nova running with that carb Mark.
It was run in a mugen Sting their first onroad 1/8th, that was a great car! its now in my custom made carbon fibre dragster, its only been run a few times a year since I built it in 1996, sadly no rc dragracing in NZ, amazingly motor can sit a whole year with no ARO and fire up evey time.