Big Cam No Vacuum

RustyRatRod said

Sounds pretty normal. Where is initial timing set? If you don't have enough, pulling in more may help, but probably not much.

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The timing is set at 36 degrees total. According to the Dyno this seemed to work best with the NOS. The cam is a roller cam. .288 intake. .292 exhaust duration, and .501/.513 lift. 1.6:1 rockers. 439.5 # Torque and 343 HP at 4100 RPM. and 398.6 # at 5400 RPM and 409 HP. These numbers are without the NOS.