Need more information mainly because all engines are balanced. Some are internally balanced while others are externally balanced. Has your 360 been internally balanced or is it still externally balanced like it came from the factory? What B&M flex plate (part #) did you use? No idea what your talking about when you say "The car cam was set up for circle track so it is heavy the harmonic is a balanced one". What does the cam have to do with balancing???? Excuse my being blunt but that's a bunch of jiberish to me! Also, better punctuation helps us older guys decipher what your saying.:banghead:
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