Check out these data log pics :)

[MalcolmV8]

Here's two screen shots for you. Basically I'm doing 40mph in 3rd gear and then stomp on it WOT. The idea is to make a full pull through 3rd (goes to 100 mph) and then pull in 4th if space permits and send the data logs to my tuner so he can tweak the tune. One little hick up. Right around 75 mph the rear tires just break loose and the car fish tails all over and I have to let out of it to straighten up the car. This is with 315 tires on 10.5" rims. They are street tires though, time to switch back to drag radials.
I ended up topping off the gas tank and having a buddy sit in the back seat for extra weight to make a few pulls finally and even then it's just barely holding on.

The yellow line on the graph is throttle (TP ABSOLUTE) and the brown one is engine RPM and the purple is vehicle speed. Notice the dip in yellow line (throttle) in 3rd gear pull. This graph shows 3rd, 4th, and touched 5th for a second.

This one shows a 3rd and 4th gear pull. See the dip in 3rd.