Thought i might add this here as its sort of relevant, picked up the bypass idea here too for the flex sensor so thanks guys.
I wont be using a surge tank as my car is street only so dont think ill need it.
Im using a walbro 460, i may need to run a second pump and when the time comes it will be mounted intank as well.
Using the standard hat with bulk head fittings for the cable and will be putting in a dash 8 fitting through the lid and new line up to the rail, ill put a T piece in the back of the fuel reg and run one to the flex sensor and back to the standard return line and the other will be returned to the tank using the factory feed line. Hope i have explained ok as it is usually lost in translation from brain to mouth, or finger in this case.
I hope it will make everything work and i have not overlooked anything.