70 MM Throttle Body strange idle
 

Just installed a 70MM throttle body on a stock manifold with a K&N FIPK and am having an idle issue. Car starts fine with an idle of about 1000 after driving around the idle is around 1100 and I can live with that. When I start getting on it say 7000 RPM the idle will stop around 2000 or it will bounce around and throw a P0505 code. I can clear the code and everything goes back to normal. I do not have a spacer but looking for some ideas or need to go back to stock. I already replaced the IAC and the TPS is set to .3VDV. I have performed a couple of idle relearns.
https://cimg1.ibsrv.net/gimg/www.s2k...538ba8bcd.jpeg
https://cimg2.ibsrv.net/gimg/www.s2k...623b91ad5.jpeg


Thanks

Curious what the goal was with the laeger tb. Proven not to have any benefit unless high levels of boost.

It was almost free and sounds amazing.