Boats N' Hoes

ok, because i want to hook it up on my 97 hatch, and im building ls/vtec for it. the point is the dx hatch cluster has no tach. so i was think if just splicing the wires needed foir the rpm in. but you think i can also use the fule controoler aspect also? do you know anyone that could wire this for me? any help is much appreciated. tia