I have a stock LS with stage 2 cams (Crower 403) and I've been tuning it with Crome. I used P72 as my base and I'm pretty much done for now. I've seen most people recommend to use a P30 base.

What are the advantages to using a P30 base? Should I use that instead? What's the easiest way to copy the maps from one to the other? I've noticed that some of the advanced tables are completely different.

 

Google it. There's a guide on how to do this.

 

http://www.xenocron.com/install/CromeGuide.htm

edit: I'm not sure if this will answer your question but it might.

 

Your not going to really see a night and day difference by switching to a p30 code base.
You are still injecting the same amount of fuel & timing etc...

 

no need to as the base codes can run all the same features