You have to keep in mind that cubic inches "tame" a cam. A 283 will run much rougher with the same cam as, say, a 350. An S10 is light enough to put up with more cam than a full-size truck. Depends on you in the end, and how you want to drive it. I ran much the same cam in a 283 in a '54 Chevy and loved it, but it was a bit much around town. Great on the open road, where I do most driving.