[bans25]

There could be many factors to differnt dyno results.

1) Not all dyno's will give the same HP #'s, some can be 5% more difference

2) Temp, was it a hot day? was the truck heat soaked?

3) Fuel.. did you have bad or low octane fuel? did you have KR?

4) altitude, closer to sea level produces more HP..

all and all I don't think you are far off, GM's claim of 295 is an average, some are higher, some are lower...