awd400

First of all, you need to set the ignition accurately. There should be a mark on your crankshaft pulley for setting the ignition. Use a stroboscope. The ignition angle specified in ms should match the actual crankshaft angle. This is very important, otherwise your ignition table will show the weather on Mars. You also need to think about detonation control, otherwise the pistons will be consumables. If you do not have detonation, you will not break the engine.