My Vitara -92 LWB 16v is cutting out on me.

I had this problem last week, and found a broken. found a broken disty cap, and changed that and the rotor. After that it ran great for 4 days. Still had a little missfire so I changed the ignition cords and the igningtion was spot on again.

But this morning it started cutting out again,  this comes and goes, it runs bad for a while and then goes great  for another 15minutes.

When this happens it cuts out at exactly 2500rpm, and it feels like someone just shuts of the ignition, and when the engine is back down on about 2000rpm it takes of again, and this repeats.

It drives fine if you keep it under 2500rpm, but you really cant drive it like that.

Any help is appriciated, cause I'm all out of ideas....