Who makes performance intake manifold??

I've been checking this forum for a while now and I figured it was time to ask.I want to run dual side-drafts and I cannot find anyone who makes an intake manifold for our trucks.Does anyone know where to get one, and maybe some other ideas for a similar setup, like crotch rocket carbs or something?I'm getting ready to leave for a while and I'm gonna have extra cash and some time on my hands so I want to start piecing something together.