10-25-2016, 10:36 PM
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#2
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VIP Member
Join Date: Dec 2001
Location: Arkansas - In the middle of everything.
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Re: Why No 421 Super Duty in current NHRA Guide?
Quote:
Originally Posted by Travis Miller
I checked one of my old NHRA Redbook Classguides and found a page for the 1963 Pontiac dated 1973. The top 421 shown is the 370 horsepower even back then.
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Likewise in 1970.
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