I bought an '02 Bugeye with 130k about a month ago. I replaced the timing belt, tensioner, idlers, and water pump first. then I replaced the plugs with the OEM NGK's. The car runs perfect and has tons of power. It does get misfire codes though, and I'm wondering why. My big question right now is- could I be running the wrong fuel and would it cause misfires? I'm using 93 octane. I wonder if I should try 91. I have no way to find out what the previous owner used. I'm going to check the cam timing but as good as it runs I can't imagine one of the cams being off a tooth. Also, I turned the engine around by hand half a dozen times before reassembly and all marks were perfect. Still need to check grounds and air leaks, and I haven't replaced the fuel filter yet, but I will soon. Thanks for playing.