i decided to retard my cam back to striaght up yesterday. it is a 2003 ls6 cam. when i installed it i advanced it. which funny thing is when i installed it the tune was almot still spot on from stock cam. well i retarded it yesterday and i'm 2 afr's lower than before. from 14's to 12's. i know how to take care of that. but i'm gussing its really going to pick up on the top end (i hope anyway) so about how much fuel should i add to the top end? 2bar SD. i have an idea but i'm just wondering what you guys think? last time i added 10% and it was way way rich but then again it was advanced and the low side was still spot on.

i do have to say the exhaust note is way better with the cam striaght up.

 

I would add 10 percent. Its a hell of a lot easier to lean it back out, instead of poping the motor.

 

thats kinda my thinking on it too.

 

10% was about right on. by retarding the cam i seem to have advanced in power. holy crap, it pulls better up top than before. i had to take out alot of fuel down low while cruising but it feels about the same with alittle better throttle response.