I went 14.1 @ 99MPH with a 2.1 60-footer in the GT.
The 5.0 has gone 13.9 @ 101 with a 2.2 60' and yes it has 3.73's.
Bone stock it went 14.7 @ 93MPH.
In all fairness i have a pretty good list of mods on the 5.0...but still stock heads, camshaft and AOD tranns. If you actually want to see the mods it has, just check out my "Garage"
I am not surprised we ran about the same in our 4.6 GT's we both run at the same track, maybe conditions were a little better when I went..
when you change to 3.73's in a 5.0 AOD it is a HUGE improvement as long as you can hook.
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