[christianchevell]

Little things matter; like is his correction factor the same STD...inflated or SAE? is he a newer model with electric power steering? is his exhaust more free flowing? Is his intake not a heat soaking cheaper K&N? His tires the same? Headers intake and tune...should be about your numbers no real big glaring thing could be a difference, but the guy operating the software printing the data on the dyno..... tire slippage etc its all in so many things its hard to track it down but the print out helps; colder air can make a car suck much more gas making more power so a dyno run on a cold morning with denser air can make a lot more power on the same day with a little more heat …..numbers drop, correction factors can be off especially without a good weather station attached.