First of all, how big is your bottle? Mine's only a 5er, so I kept with 2 nozzles. I've got a 2 way on the trans tunnel at knee level pointing toward my torsal/crotchular area and a 3 way in the engine bay centered above/behind the intake manifold. That was the smartest thing I could come up with with such a small bottle. I think with a 10# bottle, I'd do a 3 way on me, one per bank in the engine bay, and one pointing at the fuel tankular area. Partly to keep the car from burning down, but moreso to quell the fire, wherever it's coming from, long enough for me to GTFO. 3 for the driver seems a bit much, could that possibly backfire and overwhelm you?