I am using a wet nitrous kit for this season and don't want to loose much if any power n/a when on the nitrous tune. Is there any at to go about tuning for a wet shot to only pull timing when the nitrous is in use?

EDIT: oh also I am MAFless and tuned in SD

 

Yes there is. It consists of a lot of wiring to do so though. What you will need to do is configure a relay setup to trigger only when the nitrous is activated. What this relay will do is trigger a resistor pack that must be wired into the IAT sensor. In a nutshell it will basically peg the IAT sensor to 284* or something really stupid high and then what you can do is go into HPTuners and configure what timing correction at that temp reading. But you must also fix the fueling as well to make sure it doesnt modify your fueling to the injectors also. It is very involved but very possible as well!!!

EDIT** Found the diagram to make this work... Here is a link to it:
http://www.chipsbyal.com/convert98/n20.jpg