Theyve sold em for at least 10 years,probably 15. Unless your talking about the Nozzle kit. I tried the pn you gave and nothing came back.Any direct link to the page??
Found it.Yea theyve made em for years. Id like to have one of new Nozzle kits though.They make a universal 6 cyl kit but id rather have one thats application specific for the $1000 plus they charge.
Actually, May/June 1986. I bought my '86 mustang GT in April 1986 and I ran into a GN Running 12.9's about 2 month later. It was stock except for the NOS Kit.