I am running at about 215 on speed runs and 190 bashing. Also the temp changes quite a bit (+30) from day to day without me even changening the settings. But the amount of change from day to day has settled down now that the engine is more broken in.
But the LSN is rich. It will only idle for a couple secs, and is bogged when accellerating from a stop. It also spits fuel when first starting.
The airleak may be the problem. But isn't a backfire usually too much fuel, not air??? I don't really know for sure.

Any recommendations on exactly what to look for when I have the engine apart. Besides loose debris. Maybe scratches on the sleeve or piston...

Thrilsekr