i have actually dynoed a TB coolant bypass mod. 0 gain. did it for s-n-gs and dyno owner was my buddy. in any event 2-3 rwhp is easily from variance in the barometric pressure which effects the correction factor. also motors tend to gain and loose power llike that from just normal operation.

in any event....back to our regularly scheduled program

also why are we talking about 285 rwhp stock LT1s? did i miss the boat on this one?