I don't know, lots of guys running in the 10.5 class are deep into the 9's with leaf springs and it takes about 60HP to gain a second in the 1/4. I'd have to actually see the before and after tests to believe that, its not one of those "difficult to believe" situations, its just not conceivable unless there was something very wrong with the original springs (which kind of goes back to our last discussion about making sure we are testing "good" OE parts instead of broken worn out parts to make the after results look better).
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Dennis
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