Hey Kimbo man it's me, with the GTR from teh other night at Kat's Welcome to forum btw...and the never boring world of the RB's haha
That's quite early in the piece for spitting =/ I'd start by going over everything with a fine-toothed comb - ie every single electrial wire and plug that you can see and the same for all your vaccum/air lines and pipes and hoses. Then I'd start taking things apart like, checking your spark plugs to see if they tell a story (there are some charts for plug discoloration etc)....if this "spitting" feels a bit more like a surge of some sort I'd also check/replace the fuel filter etc.
I have had coil packs go on me but they tended to wear down gradually, only missing in high RPM / high boost and then working their way down the rev range till they fail all together and your car sounds like a WRX ;-)
But yes, a good way to start is with a thorough inspection and cleaning of anything that is a sensor or an electrical connection. It's usually always something stupid like that...and if not, it's always best to start with this as it's the least expensive fix