[1971-Chevelle]

I am considering going back to a mecahnical fuel pump (mainly because I am not good at fabrication, so my current electric fuel pump mounting location is not ideal). I have the correct fuel pump pushrod on the way from Straub Technologies (who I purchased my cam from). My question is would the Edelbrock 1721 or the Holley 12-327-11 fuel pump be better?? 383 small block, that is supposed to be around 500/500.

Now, if there is someone close to me who is good at fabrication and would be willing to help me get the eletric fuel pump moved to a better location, that would be awesome (I would not expect them to work for free). I do like having an electric pump, simply because I can prime the carburetor quickly if the car sits for a while, but this is the second time that the motor has quit working on the pump (it was rebuilt in 2013 - the original one only lasted about 4 years).

Let me know what your thoughts are. Thanks in advance.

Edelbrock Performer RPM Series fuel pump for SBC and W Series Chevy

Edelbrock part #1721 Performer RPM Series fuel pump is for Small-Block and "W Series" Chevrolet designed for use with all Edelbrock carburetors used in Performer or Performer RPM applications

www.edelbrock.com

Holley 12-327-11 110 GPH Mechanical Fuel Pump

Holley mechanical fuel pumps range from 80 GPH to 225 GPH in many various applications to meet the fuel demands of most engines. Whether you are looking for a street performance or an all out race mechanical fuel pump, Holley has the pump you need.

www.holley.com

P.S. If someone knows of a straight through electric fuel pump (i.e. cylinder shaped) that would work well in a carbureted application, I am open to suggestions there. All of them that I have seen put out a lot of pressure, which requires a regulator (and I don't know if the regular Holley regulators will work at 40 PSI and above).

 

[hydro462]

Mechanical pumps work real good, however they need fed. Most times these cars have a 3/8" factory tubing with a lot of tight bends. What I did when I got a aluminum fuel cell with dual sumped fittings. I ran two 3/8" lines from the tank to a tee in the fuel pump. What a difference!!!! Once you get the big Quadrajet on big Chevys fed enough fuel they really turn on..
Also, its real important to run a return line off the tee, 1/4" tubing is perfect. Usually most tanks have a port at the top for the return line..

 

[vortec710]

You may wish to take a look a the Carter electric pumps, lower pressure for carbs..FWIW

 

[Bob Tiley]

I have the Edelbrock mechanical fuel pump and it has worked great for 20 years.

Edelbrock 1712: Victor Series Racing Fuel Pump for Big Block Chevy 396-502 - JEGS High Performance

Victor Series Racing Fuel Pump

www.jegs.com

 

[bracketchev1221]

A 110 gph mechanical pump will be fine.

 

[Malibu ss 64]

Go with Edelbrock think they still are Us made. Holley, carter etc are made in Korea.

 

[427L88]

Carter 172 has been flawless so far. And when it flaws, its rebuildable.

 

[blm]

I had a brand new Holley fuel pump on my brand new 496. It lasted approx 45 minutes before the diaphragm ruptured and was spraying fuel all over my headers. Couldn’t even return it. Had a thirty day guarantee. So I can’t say I recommend a Holley.

 

[Malibu ss 64]

Carter 172 has been flawless so far. And when it flaws, its rebuildable.

Yes but its been discontinued for over 10 years. Carter has two 120 gph BB pumps but they are now made in Korea and looks just like the Holley casting. I have both an Us and one Korea. Suppose its same with sb pumps.

I have a 13 year old Korea Holley 170 gph that has worked perfect had another that didnt work only 3-4 psi.
Edelbrock still Us made or at least was untill recently. Has one Victor that works great with a clay Smith/enderle bypass valve.

 

[Stokerboats]

The Edelebrock 1721 can be had on ebay.

 

[Malibu ss 64]

The Edelebrock 1721 can be had on ebay.

Summit has1 in stock.

 

[cage2592]

I will always run a mechanical as I never really trust electrical. I liked the Carter 172 as well but when I couldn't find one I went to the Holley 12-327-20. Once I get over a certain GPH I always add a regulator. Had to many issues with "no regulator required" just to have the pump at 7.5-8.5 psi and blow past needle and seats. I like mine to sit at 6.0-6.5psi. You'd be fine with anything around 80GPH.

Just installed a belt driven on a friends and really liked it. A lot more money in the system though.

Mike