Well, I'm back. Trip did not go as planned, but the truck did well.
I picked up a buddy of mine in North Carolina and we were to meet some other guys in Miami. Well I get my buddy and we head south. Got all the way to West Palm Beach and my buddy gets a phone call. His dad just had a heart attack and is in critical condition in NC, he is not taking it well at all. We turn around and head north on I95 back to NC. Got him to the hospital and his dad is still there in ICU, but stable. I stayed overnight in NC and did not feel like driving back to FL so I came home. So it was an interesting trip to say the least.
The truck did great though. I just figured out the fuel mileage. 19.8 mpg going down alot of drafting 18 wheelers going around 5 over the speed limit. 18.32 mpg for the entire trip. Not to bad, drafting definitely help.
The person who owned the truck before me and install the Flowmaster should be shot. I hated to go between 55 and 60 mph (1500-1800 RPM) because the drone was horrible, however at 70+ it was not bad at all. Now I just need it to rust so I can replace it.