I also have MPC-HC 1.7.10 and the same filter list and I see 23.976 being run through SVP 3.1.7 .
I don't recommend ReClock. I tried it with this file. As this is an mp4 file, ReClock actually interfaces properly with it automatically (ie: it detects that SVP has increased the FPS). I noticed my FPS fluctuating between 55-60 with ReClock enabled, though the audio was synched. However, after a while ReClock started to cause audio stutter and warble.
Dunno if it is just because it is so ancient, or because of how much computation power it needs, but I've had a lot of issues with ReClock.