These are (were?) frames made in Taiwan as a house brand for Performance Bikes. As such, I can't imagine that they're anything but ISO/English.
The frame is a track frame, and so the chainline should be about 42mm IIRC. dedhed's (and Jeff Will's) comments above (the OP's crank of interest should work, the Shimano UN55 is an excellent "can't go wrong" BB choice) will be useful to the OP.