Orange peel

[tinman_local2]

I tried posting in the paint and body section but didn't get much action. So I'll ask here.
Getting close to painting my k20. I've read a lot about how to avoid orange peel, but no real fixes or what exactly causes it. I've heard gun settings, travel speed, and temperature are all causes. My question is, if you get orange peel what do you change? Is it too high pressure, too much volume, too low pressure, travel speed too slow or fast. I've sprayed some single stage paints before with little problems. I've never done BC/CC. Just trying to avoid alot of cutting and buffing. Any tips from the pros would be appreciated.