Tuned it on the engine Dyno. Made 400 HP @ 5100 RPM and 430 ft/lbs of torque @ 4600 with over 400 ft lbs from 2500-5200 RPM. I think his dyno may be a little conservative but also keep in mind I have a very small Hydraulic roller cam 217/225 @ .050 and .544 lift, 109 LSA, 264/272 gross. It ides with 17" of vacuum and scoots along pretty well with the 3.91 gears.
