What injectors & fuel pump for 347?

[Sam8950]

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.

 

[b1gp1mp1n247]

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.

id go with 24# injectors from FMS and a calibrated MAF to go with them. id stick with FMS injectors and take ur pick with the MAF (C&L or Pro-M). fuel pump use a 190lph and you'll be good. bbk makes an excellent fuel pump! good luck

 

[b1gp1mp1n247]

sorry i didnt see this the first time i read but, bbk also makes a great regulator

 

[DavidF]

I use 30lb and 255lph with my 347.

 

[matm347]

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

 

[bmo37]

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

im running 30's with a 255lph pump also, but im going to boost soon and will need at least 42lbers

 

[TIMMY2734]

id go with a minimum of 30lbers
For a FPR, Kirbans are probably the best out there

 

[67stang390]

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.

 

[bmo37]

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.

the stock fuel rails actually are pretty good and can supply a large amount of hp think the numbers around 600+hp

 

[67stang390]

Yeah the stock rails are pretty good, I ******* one of mine up real bad when I pulled the engine out so I had to buy new ones.

 

[Bone Racing]

minimum 30

 

[runningmole]

I use 30lb and 255lph with my 347.

That's what I'm using