tried from about 6300 to 7000+. Tried dead off throttle... rattled .tried feathering... rattled In the 18 passes i tried about 5 different burnouts and it still rattled. Of couse the first few I fiqured were break-in. Then about run 12 it started to rattle about 40-60 feet then we started to go back up on the pressure and it went away. i really do not want to change the converter this was a good combo in the altered but I know i'm dealing with a different animal. going this weekend to change gears to a 4.30 guess we will have to wait till spring now.
Thanks for the response any other ideas would be great but 1 thing at a time I quess