Well, my latest trip to the drag strip resulted in a broken driveshaft. I dropped the clutch and stabbed the gas pedal and the car didn't go anywhere. The RPM's went up rather quickly though. Here are some pics:
I now have a Spohn Extreme Duty chrome moly driveshaft with solid 1350 Heavy Duty Spicer U-joints and yokes. It's supposed to be good up to 1,000 HP, so I shouldn't have any more driveshaft problems in the future.
Here is the new chrome moly shaft painted silver next to the wrecked aluminum shaft:
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