Half installed but now I have questions

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I am fitting WI to my car, I have fitted the header tank, Fitted the pump (ShurFlo), The pump is wired in. I am running Megasquirt which is set to control My WI.

My main problem is the injector, I was going to use a coldstart injector, I have since learnt that this will fail after a short while, What should I use??

Where is the best place to mount the injector??

Before the turbo,
After the turbo before the IC
Or
After the IC?