on an inexpensive note
which is less complicated
what type of wiring is your pump setup with? be sure to use a high quality relayed harness (thick gauge) to provide your pump with as much current as possible. there is a big shift in fuel pump performance based on current.
also, why are you running a walbro? its been discussed time after time that these pumps are wishy washy. out the box ive seen them have problems.
i picked up a used MKIV supra fuel pump (denso) for 30 bucks. stick with something quality. if thats not enough, add an additional external pump or double pumps, splitting between the two banks of injectors
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