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Peak HP w/ ported FAST

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Peak HP w/ ported FAST

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Oct 2, 2007 | 06:16 PM

#1

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From: SoCal

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Peak HP w/ ported FAST

I was wondering what kind of RPM you guys are spinning with 400+ci and a ported FAST90? My car has a solid roller and only makes peak power at 6300rpm with a ported FAST. I don't blame the porter one bit just the intake itself. I was very suprised how low in the RPMs the car made peak HP and was wondering if any of you guys had a different experience. I was hoping to spin this thing to 7500rpm or lower but had no idea it would be as low as 6300!
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Oct 3, 2007 | 12:16 AM

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Good luck. My 408 spun till 6600rpm with a fast. Now pulls to 7600 with the Beck intake!

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Oct 5, 2007 | 07:18 PM

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post the graph. sure it isnt valve float? or other mechanical issues? that seems aweful low b/c i believe you have a big cam in that motor.

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Oct 6, 2007 | 12:54 AM

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I cant remember but I think it was Phil with the vette that had a solid fast90 setup and pulled it to 7600

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