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Old 02-17-2010, 01:17 AM   #1
truckincurt
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Join Date: Mar 2008
Location: Lockport, NY
Posts: 106
383 headers

i got a 9.7:1 383 with dart pro 1 alum heads and a med lope cam still runs power brakes it should be around the 500 hp range what size headers should i run 1 3/4 primary to a 3 in collecter or 1 5/8 primary tubes to a 2 1/2 collecter ? im hot sure how big is too big?
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