Hope you can stand another "compression test results" thread

Rat Bastid said

You are dead rich and it needs more total timing. You need to fix that before you do anything else.

What plug and heat range is that?

Click to expand...

My timing at idle is 30 degrees. At 2000 rpm it drops to around 28. I'm beginning to think that I may have an exhaust leak that is causing the O2 sensor to dump fuel into the throttle body since my AF/R between idle and 2000 rpm fluctuates between around 11.9 and 12.4 as shown by the Holley Sniper wizard display.