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Old 05-25-2013, 09:00 AM   #10
_Nick_
 
Drives: '87 T/A, '87 IROC, '70 Grand Prix
Join Date: Oct 2011
Location: Long Island
Posts: 451
The 392 is underrated at 470/470. I've seen dyno charts that would suggest they make a bit over 500.
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