You are absolutly right. Heatwaves is what you want to see in an engine but turning these up you create a little embalance in the air fuel system. On my large Cat engines, you can turn them up almost 200hp and still meat emissions with very little amount of smoke. The difference is in the highly advanced computer and fuel pump. I'm sure with some R&D and computer programming you could make a match in turbo and injectors to have a high output without the smok'n.