Check for leaks and vibration from the drive shaft, lt1 is a strong
and reliable engine , interior should be soft , not really hard . Look for any beaching on the hull , hope this helps , solid boat , good luck.
I saw your posts on Team Talk. I'm going to look at a 96 PS 190 with the LT1 engine. The boat appears to have been maintained very very well. From your experience what should look for during the pre buy inspection and sea trial?