As I mentioned before, you need the L67 paper gasket to go between the throttle body and the adapter. You can used a small bead of RTV between the blower and the adapter.

When I did my L26 UIM swap, I used this exact kit:
https://zzperformance.com/collection...-adapter-plate

Here is a link to the paper gasket (any local parts store should have this):
https://www.rockauto.com/en/moreinfo...424056&jsn=463

 

After gasket was cleaned off



Got a black eye




Here's a link to the car shout out to those who have been a help gud looking