know this is a couple of months after the fact,but i know someone in goulburn nsw,chris brown,who used a hilborne constant flow injection manifold off a compact speed car,with bosses welded on to take the fuel injectors.the car is very quick,& the manifolds are readily available from the speedway world.a bit of fabrication i know,but factory injection manifolds are rare as,& tend to crack around the 1-2 inlet ports,due to a water jacket weakening the runner.i know this as both my manifolds (yes i got one,sold the other years ago) cracked here.the other pity is yet another friend of mine made his own injection manifold based on gx carb runners & a large plenum,all out of aluminIUM,but Ron passed away at the end of last year, rip.he had this on a supercharged a15 in his 1200 ute,with an mr2 blower,microtech injection,big intercooler,toyota 5 speed,h165 lsd & 4 inches grafted into the back of the cab so he could fit into the thing.went like stink,burnt clutch packs in the slipper regularly,how i'd love to get my hands on this one.