Hq block with fuel injection top

[V8VAN]

ADR27A. You are free to change to basically whatever carby you want with HQ and HJ, and EFI is just another form of carby change. HX has to comply with ADR27A, and you have to prove this, so Engineering is required. Without testing which can be expensive the easiest way to prove compliance as part of the Engineering process is to use the whole EFI engine from the donor car, which also means cats and ulp filler neck (filler neck may have been relaxed now).

So the Vn 5L I have here would have to be engineered in my Hx van?