08-05-2021, 12:23 PM
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Senior Member
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Join Date: Mar 2017
Location: ABQ, New Mexico
Posts: 36,633
Thanks: 3,506
Thanked 136,538 Times in 22,784 Posts
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The first Super Stock engine to be refactored by NHRA was the 1964 A990 Race Hemi. NHRA refactored Chrysler’s advertised 425 HP up to 500 HP.
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