There is a model of G13b that came with a crank angle sensor with attached to the lower timing belt pulley, you then buy and oil pump (which the sensor attaches too) then need a sump off a G16b with a cutout to suit and it should all bolt up. It uses a 36-2-2-2 which is that same as an EJ20 from memory. This is the setup we are going for on our G16a and then just making a blanking plate for where the distributor used to be.