nickmckinney
Member
- Sep 25, 2009
- 164
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Cam specs are dead on good for these heads and blower combo, without the blower these cams will make more bottom end torque NA than the stock cams even. As for comparing NPI to PI heads, the exhaust port of the NPI head is a serious choke point that really shows in boosted applications, I want to say a stock NPI exhaust port is done at 130-140CFM give or take. Longtubes show more power gains on NPI heads than PI heads for this reason.
6-7PSI is pretty low though, no chance on getting a bit more boost out of it? Can't these get into the 8-10PSI range?
6-7PSI is pretty low though, no chance on getting a bit more boost out of it? Can't these get into the 8-10PSI range?