I tried searching for a bit, but I didn't find threads that had similar problems and I don't want to sit around for hours searching all the results with different keywords.

Anyways, I have this weird hesitation that happens at around 2400-2900 rpm when cruising or light-moderate acceleration. It doesn't happen often, but it seems like it happens more frequently on a road on an incline (the hesitation doesn't only happen on an incline btw). I drive a TII with upgraded injectors, fuel pump and a microtech lt8 tuned by a reputable shop. I have a couple potentially helpful ideas from different threads, but any other help would be appreciated. Thanks.