Thanks for the replies guys! Shortly after making this post I decided that I will put duals pipes for better breathing, but I prefer quiet. I am a truck driver and sleep in my truck a lot and nothing P-sses me off more than another truck with straight pipes parking next to me or pickups with loud pipes showing off, and there goes my nights sleep. Going to leave the standard 3:07 gears. I have decided on another way to increase horsepower A LOT. Will update if it looks like it will things come together. Sticking to V6 so don't worry.
Dave