| Carburetor Information
Fuel Pump Info
Question: [JB] "Is anybody out
there using the stock Mustang GT intank fuel pump with there Carb
setup? If so, what fuel pressure regulator are you using? If not
what setup are you using?
Answers:
[DB] "Stock GT intank pump with a Mallory
4309 regulator. Pressure is set 5-7 psi with engine warm - it always
reads higher when engine is cold. Summit has the regulators for
about $79. You will also need the pressure gauge, which is in the
$20 range I think. Spend the extra $5 or so and get the
liquid-filled gauge. It won't bounce around as much."
[M] "I used the Holly Blue pump. Mounted
the pump near the tank and the regulator on the firewall. Cost about
$80.00 from Summit."
I used the Holley Blue pump as well. It is a
noisy pump for my taste though. I think some people are using the
Carter pump.
[CH] "If you go with the "out of the
tank pump" than you need a new pick up to screw into the pump.
I have a Granatelli (sp). They cost about $80 for a rather simple
piece of metal."
[RO] "If you want to change pumps later
you can use the stock pump as a pickup. Remove pump portion and
replace with fuel line long enough to reach bottom of tank."
[MB] "I've had good luck with Mallory 140
pumps and their 4309 regulator."
[ST] "I purchased a carter fuel pump from
mike forte. It has a built in regulator and he highly recommends
them."
[AU] "I had the Summit Electric fuel pump
and regulator and what a piece of junk. Only lasted 23 miles of
neighborhood riding. This thing sounded like it had ball bearings in
it and it stranded me 3/4 of a mile away from the house. Cobra's
might be light but they are still hard to push that far.
I took the pump apart and found three small
washers stuck in the pump????? They had to be in the pump all along
as I don't have any washers like them and the fuel line runs thru a
fram canister filter before it gets to the pump.
Summit said to send it back but they have
stopped using that pump. Wonder why??? They talked me into the
Holley Blue pump with regulator. I hear it is kind of noisy but so
was that crappy Summit plastic pump. Is the Holley reliable and how noisy
is it really?"
[MI] "I to bought the Crappy Summit pump
and I never made it out of the garage, It ran for about 3min before
it started pumping fuel out of the motor side of the pump. This
could have caught FIRE! Now I have the Holley Red. I know later I'll
have to get a bigger one. I am going to wrap some more rubber around
it to try and quite it down a bit"
[Mort] "Mechanical pump in the front
cover, I'm feeding 3 carbs, works fine. I'm probably more likely to
find a replacement in a bind. Its old but proven technology."
[Jam] "I used the Holley blue pump
mounted rear corner with provided fuel regulator mounted in engine
compartment. It is a noisy pump but very dependable. Can't hear it
at all once the motor starts but I would not buy the Holley again."
[351] "Mallory 140 beautiful piece well
made no problems so far in 2000 miles. I originally ran it with the
carb but now use it with efi all that needed to be done was change
the spring in the mallory regulator. Mallory shipped me one for free
(I lost the original) great company to deal with.
It is a little noisy but you cant hear it with the engine running."
[MM] "When I raced my '83 Stang, I also
got tired of hearing the fuel pump.
I took a set of MSD ignition mounts (studs on
both ends with rubber in the middle) and mounted the fuel pump with
these. This quieted the pump down significantly.
I think they were called harsh environment or
anti-vibration mounts.
[MDR] Question: I went carb. and was
wondering if others are useing a crank case vent. system. I just got
done running a hose from valve cover to underside of my air cleaner
and was wondering what others did or if this would cause any
problems.
"
Answers:
[5L] "To complete the circuit, you will
also need to run a PCV valve from the other valve cover to a
manifold vac. source (usually a provided port in the base of the
carb). Not sure if it's absolutely necessary, but that is how mine
is run."
[PM] "I just ran into this problem
yesterday. I decided to switch from EFI to carb as well. I have the
black FMS Cobra valve covers with the long chrome filler neck with
the vent tube port. I was told by a Ford mechanic that you must run
a breather (PCV) to vent the engine. If not your engine will pump
oil right out of that port. Since then, this has been confirmed by
others.
I ordered new "carb" valve covers
from Branda Performance that have the breather. Also, it is my
understanding that you should run a vented filler cap (not the EFI
one). If you look in any performance catalog you will see there is a
difference between EFI and carb valve covers. The difference being
the breather hole."
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