Im looking for suggestions for a motor i am building. Im looking at either a S1X with 1.8rr or an IS3 with 1.7rr. I already have 130# valve springs and titanium retainers. Some other info im also adding a gen v and intercooler and headers. Im looking to maximize these mods. I speced the lifts out and the S1X comes out with more overall lift but im unsure about the other differences in the cam. This will be hooked up to a manual transmission. Thanks