where to put "x pipe"?

[Ohchiiit]

I currently have a 468bbc in my c10. I have had the exhaust ran 4 different ways and im still not happy with it. the trucks sounds great for short rides but after some time in it you kinda feel like your riding inside the muffler! in the spring im planning on driving the truck on a 500 mile trip and it will drive me nuts like it is now! so my question is, will it be ok for a x pipe to be just behind the cab (I don't have any room under the truck to fit the xpipe under the cab)? I currently have 2.5" pipe from header to 3 chambered flowmasters and then out under the rear bumper exiting through chevelle tips. im gonna give bassani mufflers a try this with a x pipe. would I be any better off to change tips? thoughts anyone? I will load video soon