Originally Posted by
bluegoat06
I'll show what i did in my 06 GTO so you can have a better idea, i'm including a stock 06 GTO stock so you can compare both tunes. the cam was a 228/228 112 lsa on a smaller 364ci engine. i guess that hotcam shouldn't need much to run great on a bigger engine. no need to play with the coastdown timing, especially if you're using Bill's idle tuning procedure which is at the end of the guide i posted, put that coastdown value back to stock.
Also, you'll need to have the fueling worked out first before you run the tuning idle procedure, it'll make it easier if your fuel is spot on at idle using VE only, or MAF only. you could use MAF only to dial your fuel at idle since your cam is not that big and reversion shouldn't be an issue.