What injectors & fuel pump for 347?

Sam8950 said:

Ok, some questions for the 347 guys.

What size injectors would the most common for a relatively mild N/A EFI 347 for primarily just street use (no blower or NOS)? And accordingly, what fuel pressure & flow rate capability would be needed? Any brand recommendations for a reliable fuel pump and pressure regulator?

Thanks for the help.

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matm347 said:

It all depends on how much power you plan on having. For a basic H/C/I 24-30's will be OK.

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67stang390 said:

My setup has 30lbs. injectors. 80mm Pro-M MAS, and a 255lph pump. I originally had a 190lph FMS pump but apparently something was wrong with it and it was flowing less than the stock pump, so I replaced it with the BBK 255lph unit. The BBK pump seems to work great so far. I also have BIG Mallory fuel rails with their AFPR. You might also want to look into your fuel lines. Mine are stock right now but I don't think they're adequate(contrary to what many people on these boards will tell you). I have 6 AN- lines ready to go in when I'm at home in a month or so. Mine is street driven with no power adder(yet). My fuel pressure is around 38-40 psi.

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DavidF said:

I use 30lb and 255lph with my 347.

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