I have been driving it with the 431rwhp over the past couple days, and I must say it's a heap of fun, but in order to save my stock internals I feel that the 360rwhp is a much safer level for the engine until I get forged pistons etc.
If I do have any trouble with running the stock injectors at high pressure then I'll let you all know, but so far they've performed admirably:D
You use a Feeler guage, which you can buy at places like Bunnings. You tap the end of the spark plug on the ground until you can only just get the metal plates between the gap.
Al, Yeah, they want to get 1000hp with a 200hp shot of NOS, but they will have to run CDI before that can do that, it's tuned for about 500hp on the street.
I'm running the 431hp map at the moment, but will get Steve to swap it over today.