LOL, Funny you should mention the snorkel.
I have been told by "Bundy", an OZ member on here that has a 1UZ in his Bundera, that when he hooked his snorkel up that the ram air effect made the air flow metre go spastic and caused the engine to cough and splutter.
When I found this out I was spewin cause my rig never had a snorkel before the respray, so now I've cut one in I may not be able to use it.
Anyway I'd be keen to see how you go, I'm going to get mine goin before I connect the snorkel to the airbox.