I think I found my vibration problem

Bill, did you tell Kenny at PTC and the guy at Hughes that you had the B&M 10237 flexplate on it? If so and they know what their doing they'd have known you didn't need those weights.

I also recommended earlier, as did Crash520 in post #27, that you should take all the fan drive belts off and run it and see if it still vibrates. I have seen guys tear good engines down because of a vibration only to not find a problem except a slightly bent shaft on the water pump, PS pump, or alternator causing the problem. It's something that takes 10 minutes to test