I intend on using the va-168 manifold from vans to centralize all of my engine instrument senders on the engine side of the firewall. I have four items to be screwed into it oil press. oil temp, fuell press and the switch for the red master on warning lite. Does anybody have advice as to where to put this manifold on the firewall where all of these senders will fit around the motor mount. I was thinking of drilling it to the top angle of the firewall near the pax side but it seems that it would be a tight fit for the senders. Also how does the information such as oil temp and press go from the engine to the senders? Thanks in advance as I am venturing into uncharted territory.