modify the stock fuel system or go custom

[hg70]

i have the 2.0l mazda fe carby soon to become fe/t (turbo blow through)
i have been looking at getting a rising rate fuel reg to keep pressure @2psi above my 5-7psi boost, i'll be upgrading my pump to an inline bosch 070. should i do away with the mechanical pump and just use the bosch and reg?

 

[Charliep]

You should run only one pump.

How high you can go on fuel pressure depends on the carb set-up.

You might find it long term less troublesome to switch to fuel injection.

Whatever pump you use you will need a fuel pressure regulator. This goes for carbs as much as for injection.

 

[hg70]

i'll drop the tank today and see what i can do there in regards to installing a bigger pump, for this engine i'll keep it as a blow through (until i build the next one), cool so i should be ok with the bosch 070 pump and a rising rate fuel reg with the base set to stock and top set @ 2psi above boost?