Sorry I went off on a tangent.
I have the new evaporator replacement core from Ron at Rennaire and fit was just fine. I also purchased a complete A/C kit complete with front desert duty condenser. (see install pictures)
As to the other topic this was for a blower upgrade kit from Retro-Air.
Here’s a link, the blower kit is at the bottom of the page.
-
http://www.mrjaguar.com/porsche/porsche911carreraac.html