I say that it would have no issue.... we ran an 8 row non-chopping on our 2366, it ran it good in 200+ bushel corn just cleaning capacity was the issue we would run about 2.5-3.5 mph. We are going to a 5088 also.... it will be delivered as soon as the weather clears we are going to be running a 8 row non-chopping with it but...... 265 hp that is about like a 2188 and you can run a 8 row chopper on that..... i have seen pics of 2188's with 12 rows on the front. I think that people just think that they have to drive 6 mph the whole time that they are combining now days.... when in reality you are better off to just run a little slower and put a bigger head on a smaller machine and you will do a better job!
Eric