Contour Enthusiasts Group Archives Forums General Dyno and Drag any one heard of a blazer zr2

most zr2 s10/blazers come with the 4.3, which is not a slow poke for the weight they are moving. Also, zr2 is the offroad/4wd package. While 4wd means nothing for racing, im sure it has a stiffer suspension, so it that may help.