Intercooler or not?

I have a 1989 international 9300. It had a tired, million + mile 444 Cummins engine that I just pulled to swap for a 1991 mechanical N14 from a wrecked fire truck with only 65,000 original miles. Sweet running engine! My problem is that the 444 had a water cooled intake airbox originally on it and the N14 has an intercooler. I don't have room for the intercooler in front of my radiator. It's just a stock 410hp N14. Nothing turned up. If I just bypass the intercooler and pipe it straight from the turbo over the engine to the intake box will I create any problems? I realize I'll probably lose a few HP but doubt it'll be significant. Back in the summer I converted the 444 from low flow to high flow cooling. When I did I had to take off my water cooled intake and use a different intake box. It's been fine with no issues for 7-8 months now without the water cooled box on it. I just don't want to cause problems with this low mileage engine but there's no room for an intercooler. I really hate to put that old water cooled box on it if it isn't necessary. There's some hose retrofitting involved that I don't want to do. Thoughts?

 

Would it not be the same amount of oxygen feeding the engine just a little warmer?

 

Like I said that 444 we had already converted it to high flow and I removed the wcac when I did that and I could not tell a difference at all in power loss. And yeah I figured the hours were a little higher than normal on the fire truck for the mileage it has. But it was from a volunteer department and service is typically minimal at a volunteer department versus paid departments. I know it's better than what we had this engine is clean as a pen and our 444 was a tired greasy pig that seeped oil from almost every gasket on it. I think I'm going to run it with the intercooler deleted and see what it runs like before I go to the trouble of swapping on the wcac off of that 444.