just got tuned at English Racing with an intake / test pipe and EBC.....350/318 on dynojet...I know those shoot out higher numbers, research showed around 15% higher than mustang dyno I think, so that would put me at 300/271ish...so I guess your numbers are pretty spot on in the first one? ...I was confused as to why ER uses dynojet and not mustang for more legit numbers...but oh well I guess