It's a dual 32/36 DGEV. It's a complete kit--everything needed to bolt on to the manifold including an adapter. Already calibrated from the factory. This kit is designed for daily driving and has the jets necessary to run straight from the bax. You can buy bigger jets and what not which requires some modification but the kit that I have doen't require that just plugging up a few vac lines not used on the Weber carb. I looking for someone who has installed them before---no way I'm tackling this alone.