This is based on what I saw last week (and tbh most of the season). In all honesty, I think Iowa has wrestled well, and some of their less established guys have shown improvement, but it won't be enough. I would be happy to be wrong.
125 Ayala dec Davis 3-0 Iowa
133 Nagao dec. Schriever 3-3
141 Bartlett dec. Woods 6-3 PSU
149 Kasak dec, Rathje 9-3 PSU
157 Haines dec Franek 12-3 PSU
165 Mesenbrink dec Caliendo 15-3 PSU
174 Starocci dec. Kennedy 18-3 PSU
184 Truax maj Riggins 22-3 PSU
197 Brooks dec. Glazier 25-3 PSU
285 Kerk wbf Hill 31-3 PSU
A little Carver magic could help (and prob will) help Iowa turn the tide at at least one match 133-165 and reverse my prediction. Any of the matches 174-197 could easily get uglier for Iowa if things go wrong, unless there are some lineup shenanigans.
I have PSU by 28, but wouldn't be surprised if it were 22.