I agree with the guys above.
I've got a GT-40 on my 331, and it works fine. Although, there probably is more power to be found if I switched to the TF intake.
E
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1991 5.0 LX Coupe - 40,750 miles
331 cu. in. / Tremec 3550 / BFG Drag Radials
12.22 @ 114.31 mph - w/1.89 60'
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