Have a look at VK 3.3 carby dizzy too, these are a locked dizzy like a VN-VSIII V8 EFI dizzy, no mechanical advance setup. You could also possibly use a crank angle sensor off a carby VK 3.3 to replace the V6 crank angle sensor the VN Delco ECU is looking for. These bolt to the back of the head, and look down through a hole in the bellhousing. Only catch is you have to use a VK flywheel or flex plate - these have the 3 x targets on them to represent the 6 x TDC positions (I think thy are set at 3 or 6 deg BTDC).