i've been out of pocket for a couple of weeks while I moved to San Antonio. The only new issue I am wondering about is a possible exhaust manifold leak. I have always felt that there was some extra noise under the hood, but I am starting to believe a leak is present. I had experienced similar problems with the 454 Chevy, but thought that they had corrected the problem with the new big block. Will keep you posted. I also had a thorough alignment done, and suspect that it had never been correct from the factory. The difference in handling is remarkable, and the chronic "wheel balance" problem I was experiencing was apparently the right front tire being pulled to the left, and pealing tread off the front tire as a result.