welcome to the madness lol. Also on the octane level heres the thing , the higher the octane the more heat it takes for the fuel to burn. Optiomal performance is reached when you run the lowest possible octane level that doesnt ping or detonate in the cylinders. Running a higher octane in the busa will actually lose on average 2hp and will save fuel because the engine thinks since its getting alot of unburned fuel in the air mixture leaving out the exhaust it doesnt need to supply the engine with as much. So higher octane bad lol. Sorry just through it may help explain the differences in octane levels. It doesnt add performance like everything thinks , it doesnt burn hotter or release more energy lol. Ok enough on that keep it up and POST SOME PICS!!!! with or without the old lady , the mistress will work just fine.