If i am not mistaken I think the IAT need to see air flow over the sensor. Were you have it, It will not have the air stream going past the sensor so it will just measure the air tem in you engine bay.. Just my 2 cents.
this setup has been abolished....
00 Silvermist GTP
E85|GenV|3.2|#65's|1.95 YT RR w/105's|Pacesetters|N*/LQ4|PRJ rewire/255lph 13.2 @ 104. No Cam No IC.