Nitrous on the VCT

[robbo_yobbo]

Ive got a NA VCT I6, and have been toying with the idea of a low boost Nitro setup for a while now

This is the kit Im considering http://www.zex.com/Base/Instructions/ZEX109.pdf

Its a dry injection which richens the fuel via the cars own injectors depending on how much N20 flow there is (it has its own little computer to work it out).

Im opting for dry due to its quick instalation, and Id imagine the chance of backfire are lower due to no fuel in the manifold, and I cant see a downside over wet injection if the fuel is still richened - but please correct me if I am wrong.

The problem I see though is with the ignition timing. How can you retard the ignition timing while spraying?

Is this something that the nock sensor will pickup on and retard automaticaly if it starts to detonate?

I am only looking at setting up a low HP shot for now, but that may change later, in which case, what can the AU motor handle, and whats gonna be the first thing to go if its overdone? What should I look at upgrading in preperation to keep it safe first?

Any tips pros/cons from anyone who has a Nitrous setup would be great.

Cheers yal