His manifold is untouched at the moment. The curves on the dyno graph are pretty smooth and dont show any signs of the manifold holding it back. Last night we ran it upwards of 7500 RPM and she seems to be happy right in that area. Im sure we could start to spin it higher but It just doesnt seem necessary as the power band is soo meaty now and that it peaks at 7000.
The ported manifold might help out a little but nothing insane. The stock design is actually very well done. We are not one to stop progress though and we have been wrong before. Now that we have the HP where we want it (made some more Hp last night) we will test the ported manifold. It might not get done before christmas but we will do our best.
Eric
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