FWIW...when my car ran mid 10s, the cowl hood ran just as good as the 6 pack hood.
What makes it better...the cowl hood wasn't sealed to the carb, but the 6 pack hood was. The seal I had on the 6 pack hood worked too...was a tenth quicker and 1 mph faster sealed up.
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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