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Drove Down to see Dan at Pro-Dyno. Let me just say it was well worth every penny and the combined 6 hour drive. He got it all the way up to 521hp and still gaining. Since i still have a stock bottom end he added some top end fuel and adjusted the timing. It was able to make a safe tune of 484hp & 453tq. He recommended i get some new spark plugs to smooth out the power band since mine are quite old.