Ok I am thinking here about fuel pump Ideas, yes I need to remove the stock v6 pump for my carbbed app but the 4 cyl will create enough line pressure but does it flow enough? has anyone ran into flow problems and do anyone reccomend upgrading the line to 3/8 all the way from pump to carb?

I believe the same fuel pump was used in chevy pickups with a 454.
My V8 has never run out of fuel volume yet.
the 4 cyl pump will be OK for most SBC applications.

SHOULD YOU DECIDE TO GO WITH A FIREWALL MOUNTED PUMP--I HAVE ONE THAT I WOULD BE HAPPY TO SELL YOU. IT IS A HOLLEY "BLUE" PUMP WHICH I RECENTLY BOUGHT AS A REMANUFACTURED PART OFF E-BAY. SINCE I HAVE DECIDED TO RUN MY 4.9 WITH FUEL INJECTION--I WILL NOT BE USING IT. I SAW THIS SET UP ON ANOTHER MEMBERS CAR AND IT LOOKED AND WORKED NICELY. HE MOUNTED THE PUMP AND A FUEL FILTER ON THE FIREWALL AND HAD AN ADJUSTABLE REGULATOR WITH GUAGE CLOSE TO THE CARBURETOR.

JEFF

Here's what I did:

Since I already had the regulator and some fittings, it only cost about $20. I use the needle valve to dial in the initial pressure, then the regulator to set it at 6-7 PSI. Works great, and a heck of a lot easier than dropping the tank to put in a new pump (which would have cost over 3 times as much)

------------------
1986 SE 350 V8

Which ever pump you run you need a regulator.

You can buy a pump and a regulator or just a regulator.

I bought the Mallory bypass regulator.

The Holley pump above is a good type of pump, and it will need a regulator. But they are nice pumps and easy to service.

If I had a choice, I would go all firewall mount for ease of service, but that means dropping and modding the tank inputs. I went for using the existing tank hookups and then new 3/8" from there to the firewall mounted regulator assembly using the oe V6 fuel pump.

This pic is of my regulator setup backwards. (I took the pic before I realized it was backwards.)

One 3/8" in, one 3/8" return, one bleeder 3/8 " to the carb.

Arn

EDIT - note the 1/4 end on the bypass. That was also changed to 3/8" after I found a 3/8" fitting for my carb.

[This message has been edited by Arns85GT (edited 04-05-2004).]

So if I switch to a 4 cyl pump and I make a line change and go with some 3/8 fuel line soft and to the filter to a regulator and dial it done and into the carb I will be just fine. My engine is very high strung thats why I was worried about flow rate these are the specs on the engine i have built:

355 SBC
TRW Forged .220 dome pistons just about 12:1 compression with my heads
Dart Iron Eagle 230cc 208/160 heads
292 adv duration 501 lift hydr cam
edelbrock dual plane intake
edelbrock 750 performer
making around 465 hp

As Long as it does not starve for fuel with the 4 cyl pump I dont care about dropping the tank and putting in the 4 cyl pump. I did not know what the best route was. Thanks for everyones advise so far

Dan

You'll be fine with the 4 cyl. set up.

Worked for me, hitting the secondaries is just like flushing the toilet with mine and I never had an issue with the fuel delivery.
Just make sure you get a good regulator.

Tina

Great thanks everyone and Tina.Did anyone upgrade the line. I may do 3/8 from sending unit to carb?