Finally got a truck on the dyno with the new plenum, it was a 2006 with MPI twins, bullydog, and a TST. Stock injectors and fuel system.
Peak power went from 522hp&924ft. lbs with stock plenum vs. 530hp&936ft. lbs with the plenum I made. Peak power was at about 3200rpm
The gains were the biggest at around 2300rpm. the truck was up around 30hp&40ft. lbs.
All testing was done with the factory heater grid in place, I will do more tests with the two different styles of grid eliminators that I'm working on. \
If someone want I can e-mail then the dyno sheets of the truck so they can post them I just don't know how.
For those who are interest let me know. I will be building x10 2nd gens and x10 3rd gens at a time.
Thanks Stefan