So than am I correct in assuming that I can remove the glowplug controller and just hard wire them to a switch? I have a 85-93 with type 4 electroic controll setup, also is the blocky fuel filter that is mounted on my intake which i blieve to be a air blled valve equipped fuel filter the only one I need or should i also have a second one, inline on the firewall ( by using a transplanted set up)?