i have searched and read several loooooooooongggg threads about other peoples problems. i have a datalog that i took while the car was doing the problem. it occurs anytime i am in the 1500-2500 range, when i reach 30% throttle it starts missing and backfireing. what should i be looking at on datamaster?

edit: i also noticed that when it does start missing/backfireing, the knock count goes through the roof.