I am tuning a 2010 camaro ss with an ls7 swapped in which has a large cam 24x/25x. The main issues I am coming across is getting the car to idle consistently. I played with the idle airflow and speed until it would idle fairly steady, except every 10 seconds or so the idle drop way down and then recover. I have used some diy I found to tune and set the timing based another similar set up I tuned except with a haltech ecu. The other thing I have been trying to figure out is tuning the ve table. I know there is some information on here about the virtual ve but I can't even seem to find the link for it. The other thing I was interested in is the custom os. Can I use the 2 bar speed density to get a normal ve table with my 1 bar na car? Is there any negatives to going this way?