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Hi Esobar. Reading through your thread it struck me that you should do a leak down test *before* you make a decision to pull the head or the complete engine. You don't have enough information yet to establish what is wrong, and removing the engine can sometimes make it more difficult to diagnose what is happening. I also think you should try to figure out what is causing your misfire before you go any further. The misfire, hard start and the low compression could all have the same cause, but you don't know that yet. Diagnosis is going to be a lot easier while the current engine is installed and running than after you remove it. There are so many things that you don't know yet and that might be behind your troubles. Here are just some examples: - Maybe you have a fuel delivery problem to cylinder #2. Maybe that cylinder is getting flooded with fuel. Maybe that wiped out your rings. (Do you smell gasoline in the oil?) - Maybe your helicoil didn't seat 100% and you are losing some compression there. (Is there evidence of blow-by past the #2 spark plug?) - Maybe you have some sort of head gasket sealing issue. (Usually head gasket leaks will show up as low compression on two adjoining cylinders, but the leak down test will tell you this - or you could get a test kit to check for hydrocarbons in your coolant.) If you don't have the equipment to do the leak down test you could have a shop do it for you. It is hard to solve ignition/fuel problems without an engine installed!