I am the proud owner of a 99 rcsb Dakota with a 318 and an nv3500 5 speed. I'm looking for a aftermarket intake manifold. Few years back there was a few options when it came to this. The cross wind air gap. Hughes engi we M1 dual and single plane. But now that Im looking again. I can't find anything except the Hughes intake and its very pricey.. Anyone know of anymore?