Not every builder calls a certain port job: dune, mx etc. Someone's MX port might be another guys play port.
You need to talk to person porting it, tell them what time of riding you do and what you want out of it. Go back and forth in the conversation and end up with the best type for your needs.
I personaly like flotek but you should talk to a lot of experience "builders" and go with who you want the best.
Remeber everything should work together, from the intake, port job, pipes etc. You want the best setup overall.
I got my stuff ported and im on pump gas. Runs fine. The hell with race fuel. My biggest issue is traction and driver skill.