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Old 06-20-2013, 06:22 AM
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oldandtired
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RACING JUNKIE
 
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Join Date: Dec 2008
Location: Sugar Hill, GA
Posts: 1,370
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You did not give an indication as to your induction, so I'll show you Manley valves with a reccomendation based on exhaust temperature:

Race Master series = 900 to 1225 degrees
Severe Duty series = 1150 to 1375 degrees
Extreme Duty series = 1250 to 1500 degrees
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