need a little creative input from you gentlemen...
I have the same issue dude, let me know what you come up with. I gave up trying to make something work.
My buddy had an old truck, and he came up with something pretty sweet. Made a metal tank that he poured used motor oil into. rigged it to a small valve that was controlled in cabin under a switch much like what you posted above. The valve ran pipe straight to the hot hot exhaust. One flip of the switch and a well timed pedal mash and people totally believed he had some kind of rocket engine. The burning oil totally smoked out everything in the rear view.
My buddys diesel is great for that. Video not him but related.
http://www.youtube.com/watch?v=bgvSp-RaUuw
http://www.youtube.com/watch?v=bgvSp-RaUuw
This is a shot in the dark... are you in the army?!




Thats what I did, but now I want it in the pop out holder.. Ill get to it eventually