ignition timing question

[zaq123]

For those of you with larger cams and higher compression builds, what do you find the best average ignition timing for the idle is? I'm yet to put this car on the dyno to see MBT ignition numbers.. Just trying to dial in my idle as smooth as possible at the moment. does 15 degrees adv sound reasonable for 900 rpm? I adjusted ICV base in open loop to keep rpm on target ( without any corrections from PID or ignition corrections) for 15' adv. Once I introduce ignition correction of a couple of degrees (still PIDs disabled), it seems to idle ok and has 75 rpm range spread around 900 rpm target (fluctuating above/below 35-40 rpm).
So basically my idle timing is sitting withing 12-18 degrees. Does it sound reasonable for 2.9 M20 10:1 comp with ITBs and 284 cam?

[digger]

mine is set around 15 degrees

[zaq123]

ok, I cranked it up to 15 degrees and played with PIDs and ignition correction a little and got it idling super nice at 900rpm with +/- 30-40 rpm swing total around that target. Definitely helped with the engine temp too, idles at 197F all day long now.
digger, what is your compression? Also did you have any ign logs after dyno time? Not that mine will be the same but I just wondering where these M20 top out with the timing as far as MBT goes. I'm currently putting some miles on the engine to get it broken in for the dyno and doing some road tunning while doing so with no knock/detonation as my only parameter at the moment. Had some knock audible knock 2700-3200 rpm range at mid throttle. Luckily haltech has knock sensor spectrogram feature so working with that now. Just wondering where these 10:1 M20s typically top out as far as MBT goes on pump gas.