Interesting, Steve.
Nice glass work. You've obviously done a lot of this. :)
The evap cores look good, but my uninformed guess would be a lot of back
pressure ahead of the oil cooler duct and not enough flow to the cooler. It
might be better to take the air for the cooler from the back of the plenum.
Yea - I know you've put a lot of thought and work into this - just trying to
give you some alternatives if it doesn't work as hoped.

Regards,
John (turbo cleared customs in LA)