My 54 3100 has a 283, power pak heads, Pertronix Kit, Rams Horns, and no-name turbos exiting just before the rear wheels. I love the sound of it around town (which is 90% of my driving) but This past weekend I took it Old Town Saturday Night Cruise, about 90 miles one way. That's about 2 hours of 3K rpms...yeah that can get to ya. My solution is an OD transmission so I can go 70 at or under 2500 rpms.
IF the exhaust must exit the rear on a truck.... I like mostly hidden by the rear bumper, exiting near the rear corners and the exhaust pipe tips angles down at about a 45 degree angle and just bearly peeking below the bumper. I'm trying to think of what cars had a setup like what I'm trying to explain. In short, I (this is personal taste) don't care for seeing 2 pipes dumping straight out the back on a truck.
My hope is you end up with exactly what you like to see and tone you enjoy. Good Luck.
