ported NPI heads VS Stock PI heads
07-11-2007, 12:54 PM
#31
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RE: ported NPI heads VS Stock PI heads
They had an article in the 5.0 Mag a while back and I think it was Fox Lake who ported the NPI heads and PI headsand they got almost as much out of those NPI heads as they did the PI heads. Also my buddy showed me that in the 5.0 Mag they got a PI headed 2V to put down I think 400hp not sure if it was at the flywheel or ground.
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