Pretty sure trans is going out...

[zboy2012]

Ok so I was out driving my car through town an it was shifting like it should, well went to make a pass out at the old airport and I noticed will going from 1st-2nd it was kind of lazy so I go to do a kick down run and going from a 45 roll it would kick down and it was almost like it would stall for a couple seconds and it kicks down twice and ALMOST hits rev limiter. I checked the fluid it was where it should be. The car is a 95 z28 with a 4l60e, only mods are flowmaster catback and lt4 hotcam .So can anyone help me out on whats going on? Thanks in advance. Dustin