I Have A 280se With The Bulletproof M110 Engine, The Only Drawback On This Otherwise Perfect Engine Is The Valve Niose. I Have Adjusted The Valves On This Engine After Warming The Engine Up To 110 Degrees Celsuis, I Did This By Disconecting The Electrical Fan, And Jamming The Engine Fan With A Rag.

With The Engine Really Hot I Ajusted The Inlet Valves To .08mm And The Exhaust Valves To .15mm

The Motor Now Runs So Quiet You Have To Look At The Iol Pressure To See That Its Running, On This Settings The Engine Is Smoother Than It Was With The Factory Settings, And Also Has Noticibly More Power.

I Have Driven The Car Like This For 1500miles And I Will Never Adjust Them Otherwise, The Engine Is Now Perfect!!!:d :d