We are currently racing this car in columbus wi, starting out with only saftey mods to it, we were running 17 seconds around the quartermile track. After first removing the power steering, alternator and everything extra not needed we got to a 16.5. Recently the engine started going flat, and we have replaced the coil, checked the ignition module, and put the alternater back in. The car runs and sounds better but not as much power as before. Let me know if you have any ideas or need more info.