Holley Main Body Upgrade Question

What's your timing curve look like? Base timing at idle? If less then 15ish degree your idle would clean up with more initial timing.

This is something I want to double check. I actually need to check the marks on the balancer to make sure I'm getting a correct reading. My balancer has timing marks, and when then line up to the 0 mark on the timing chain cover it's about at 16 to 18 degrees, but I know that's not very accurate.