There was an old version of Fortepan 400 produced several years ago that was very flat with a relatively low Dmax. Eventually (around 2004, if I remember correctly) they improved the Dmax significantly, and it was a pretty decent film, also sold as J&C Classic 400, Classicpan 400, Europan 400, and there was probably a Freestyle version as well. It was similar to Tri-X with more controllable highlights. It was a softer emulsion that required a little more care in processing as well. I used quite a lot of it and still have a few boxes in the freezer.
I rated it at 160 in ABC pyro for Azo prints, but could get 640 out of it in Acufine for prints on around grade 3 enlarging paper.
You can use development times for TXP as a starting point, but for the same contrast as TXP, you might increase development time about 10-15%. In practice, I've sometimes shot it and processed it interchangeably with TXT (the previous version of Tri-X 320 sheet film) or TXP in mixed batches.
This was was on J&C Classic 400--
(there was a url link here which no longer exists)