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Re: post latest 1/4 and 1/8 mile times and 60ft.
.03 over 454 with big valve oval ports and a solid cam (.615 lift) TH400
open diff with 3.08s for now. 32 inch tall tires- went through the lights in second gear at 104.
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The TEAL GMC build thread is HERE
1972 GMC SWB
454 oval ports
TH400
fastest 1/4 mile time so far
13.05 @ 104
If you think you have too much horsepower
you obviously have a traction problem !
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