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Old 02-07-2011, 08:28 PM   #7
05gofast's Avatar
Drives: Something Fast
Join Date: Feb 2010
Location: NC
Posts: 32
Depends on setup - cam, exhaust, heads, etc.

I have personally seen 3.25 pulley, cai & full exhaust get 8.5-9psi on hit & rise up to 11 by redline. 3.0 pulley on same set up peak at 13psi
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