any v8 harness elec tb harness will work man, or switch to a cable driven tb to keep your pedal, you dont need an SS one. not being an ass here, but im curious as to why your even going with an LS motor, i mean if youre gonna run a carb anyways why not just sell that LQ9 for a good chunk, then go get a sbc or a bbc, and not hassle with any of this other crap, just wondering why your going through all this just to run a carb'd ls. No matter what youre doing you questions can be answered here in time, lots of knowledgeable guys here.....im not one of em.