Eric, the track is not always quite as available as the G-Tech. Mine stays in the glove compartment. My G-Tech is .3 seconds and 5-6 mph optimistic for the 1/4 mile. It is dead consistent though. All I ever really use mine for is to see if my car is running up to snuff. Good for seeing if mods (timing, jets, etc) have hurt or helped. or how bad my fried Traction-Lock was hurting me. Stuff like that. Gives you a chance to take it out and toast the tires occasionally as well.
Rev
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'66 Coupe, 306, 300 HP, C-4, 13.97 e.t., 100.3 mph
1/4 mi.
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