• Mustang Forums
  • 1965 - 1973 Classic Mustangs -General/Talk-
  • Classic Mustang Specific Tech

408W Fuel System

  • Thread starter Thread starter js66coupe
  • Start date Start date Dec 22, 2011
J

js66coupe

Member
May 10, 2009
49
0
7
Florida
Dec 22, 2011
#1
  • Dec 22, 2011
  • #1
I have a stroked 351 to 408W carbureted, with a 23x/24x cam, Vic Jr, headers, etc....Just wondering what others with this engine are doing for a fuel pump. Would a mechanical pump be sufficient or should I go with an electric fuel pump? If mechanical, what would be a good one to use? Some think that at the upper RPM range, the mechanical won't keep up. Thoughts. TIA.
 

BuckeyeDemon

Member
Apr 13, 2010
130
9
19
Cincinnati, OH
Dec 23, 2011
#2
  • Dec 23, 2011
  • #2
i have a Carter 172 mechanical. It's way more than i'll ever use. It claims it doesn't need a regulator but i'm getting 9 psi for the first few minutes of startup. not that it matters but i have a 418W, carbed, 23x/24x, Vic jr, headers, etc.

lots of reason's to consider going electric though. i went with a mechanical because i'm attempting to make the car look somewhat stock. the fact i'm going to need a regulator is a bit of an issue.
 

mtaqua

Member
Oct 7, 2006
345
4
19
Dec 23, 2011
#3
  • Dec 23, 2011
  • #3
I've got an electric aeromotive. I wish I had a mech, the electric is very loud. However not sure if a mech would keep up. I think with yours it would.
 
S

stangnet33

Member
Dec 23, 2011
3
1
13
Dec 23, 2011
#4
  • Dec 23, 2011
  • #4
Should consider a larger fuel line also. I'm doing the same stroker and going electric.
 
6

65coupe408w

Member
Mar 26, 2010
192
0
16
Dec 24, 2011
#5
  • Dec 24, 2011
  • #5
runng a holley red on mine with a regulated return style fuel system. AN8 feed AN6 return. No fuel suppy issues here
 

Rick 91GT

Mustang Master
Nov 29, 1999
9,692
95
99
PA
Dec 27, 2011
#6
  • Dec 27, 2011
  • #6
I like the regulated return style set-up as long as your not under any restraints (looking stockish). The larger mech pumps may keep up but I prefer electric.

If you want a quieter aftermarket pump Fuelab would be a good choice, Ive been using these over the last year with excellent results been over 1200hp with them. If you need anything let me know if I can help...
 

BuckeyeDemon

Member
Apr 13, 2010
130
9
19
Cincinnati, OH
Dec 27, 2011
#7
  • Dec 27, 2011
  • #7
my guess is your stock fuel line is 5/16. i think you may have stock line options to go with 3/8". there is an aftermarket fuel tank pickup available that has 1/2" out and return feeds (also has fuel gauge) if interested (and don't want to modify one).

I went 1/2" to be conservative.
 
M

mustangbrad

Member
Aug 16, 2004
127
5
19
Dec 27, 2011
#8
  • Dec 27, 2011
  • #8
I am using a Holley "Blue" pump (very loud), 1/2" aluminum lines for supply and return. No supply issues, just noisy withn this pump.
 
You must log in or register to reply here.

Similar threads

Fox Fuel Pump Issues After Replacement/Upgrade
  • Ryu
  • Jun 23, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 2
Replies
23
Views
600
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Jul 5, 2026
Ryu
H
Fuel starvation issues, 91 EFI to carb swap. Car dying after 1-3 gallons used. EFI tank, electric fuel pump, bypass regulator. Dual fed carb
  • hassler
  • Oct 11, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
8
Views
788
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Oct 12, 2025
nickyb
B
'03 GT Fuel Pump/Pressure/Delivery Issue
  • Brodach
  • Oct 21, 2025
  • SN95 4.6L Mustang Tech
Replies
8
Views
926
SN95 4.6L Mustang Tech Oct 31, 2025
gkomo
S
Fuel ‘88 GT Runs Rich Cold — Fixes Itself When I Unplug Sensors (ECT, MAF, O2, etc.)
  • Sufarry
  • Nov 6, 2025
  • Fox 5.0 Mustang Tech
Replies
12
Views
882
Fox 5.0 Mustang Tech Nov 9, 2025
Mustang5L5
D
Fuel 1985 GT Fuel Line Diagram
  • DienstXIV
  • Apr 17, 2025
  • Fox 5.0 Mustang Tech
Replies
8
Views
1K
Fox 5.0 Mustang Tech Jul 12, 2025
DienstXIV
D
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1965 - 1973 Classic Mustangs -General/Talk-
  • Classic Mustang Specific Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?