Gtech Results In

I have one real quick question, but it doesn't really have anything to do with a GTech, at all. But anyways...If I beat a car by about 3-3.5 car lengths in a 1/4 mile, about how much difference would be in our times? I know this changes with your speed, but a rough estimate would be nice. Thanks in advance.

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'69 Coupe with 351W
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Edelbrock Performer-RPM intake manifold, Edelbrock Performer-RPM cam, Edelbrock lifters, Edelbrock 750 cfm carb, Accel coil, Moroso Blue-Max spark plug wires, Hedman headers, 2 1/2" pipe, glasspacks, Edelbrock double roller timing chain, Edelbrock valve springs, Flex fan, C4, Lakewood traction bars, 3:1 open rear-9" 3.89:1 posi coming this summer
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