The comparison is false to begin with. Production tolerances in these motors could have a +/-10% swing in output. Couple that with the unknown of maintenance (or lack there of) and abuse, you are really just pissing in the wind anyway. For your comparison sake, the "before" graphs created by the likes of Hypertech, etc mentioned above should be more than sufficient.

 

dynos rnt to always see what u run for horse and torque it also tells u how good or ****ty ur engine is running and might be able to tell how to fix it

 

when i buy a vehicle i run a search on the specs and thats good enough for me. when the s10 blazers were new they were running about 190 hp and could out accelerate an explorer. of course blazers are old and now they probably have about 150 hp now.lol