thanks for the input----with my combination i can't get a good 60 ft (1.80) . one time during the burn-out i was told the tires quit turning----with the 7" convertor -456 gears -9"slicks i thought i would at least pick the front end up---i have no burnt fluid-new kevlar band---steel drum---what rpm launch do you think? shift at 8-85----could it be the new convertor?

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