Fuel Pump Problem- Mechanical Vs Electric?

I have recently bought a 1973 Jeep Commando with a v6 4.2l 258 - have a 1 barrel YF Carter - what is the correct fuel pump part number? Should I buy a carter?? I have tried a mechanical fuel pump from NAPA and the PSI is to high and blowing by the needle. Should I switch it to electric fuel pump?? Should I put an inline fuel pressure regulator?? Don’t know what to do and would appreciate some advice what I should do.

Some Overview / Background why I replaced it is when I bought it the diagram was bad I assume and there was gas in the oil - pumped hard but didn’t want to risk it or waste money on changing oil over and over. After i replaced it it was dumping out of the metering rod area on the crater (which it looked like it was previously) so I rebuilt the carb and replaced fuel pump and it increased fuel dumping out of the metering rod area and barely run cause of flooding, I installed a fuel filter with a return and it was alottt of fuel coming out of the return line and barely runs it’s just been flooded

 

It's unusual for a mechanical fuel pump to put out enough pressure to overpower the needle & seat. If that's what's going on I would take it back to the parts store and get them to warranty it.

 

Already did. The reviews of it on other auto stores had the same exact issues. Delphi MF009 pump. Some websites even says it’s the incorrect part, some day it fits

 

Hmm, I think I'd try a different brand. You could install a pressure regulator but it shouldn't be needed. I mean, this is just an old 6 cyl with a 1 bbl carb...shouldn't be too complicated!
This is all assuming your carb is functioning as it should. Have you actually tested the pressure?

 

This.

 

I agree and I do believe it’s functioning properly because I rebuilt the Carb, then blamed myself and bought a new float - and triple checked adjustments. I messed up and went against my cardinal rule, don’t replace multiple new parts at the same time while fixing an issue (even though I had a valid reason). No I haven’t pressure tested it yet, haven’t had the tools for it - but yes I should. Attached is a photo of the bucket after installing the return line filter and that is from only it turning over running than dying from being flooded. Not only there it was also dumping out of the carb down that not sealed metering rod I was talking about. Which to me is a obscene amount of fuel for cranking start and die for the return line to be pumping

 

https://drive.google.com/file/d/1lB1_By3loMSK-vro6ekKUYhbOaUKC6Nt/view?usp=drivesdk

 

How do I upload pictures? File too big so I added to Dropbox and added a link to a pic and they didn’t work got flagged and moderated.

 

https://drive.google.com/file/d/1I5hhwFkGORKWFT1Hk2uJi6L69nuyWI1V/view?usp=drivesdk

This is a picture where you can see the metering rod where it’s leaking. Older pic -and you can see this has been happening from previous owner - hence why I decided it needed a carb rebuilt

https://drive.google.com/file/d/1Xa_hmHGQYSWQzd2WStocqZbdKo9PqVts/view?usp=drivesdk

they picture is from right after I installed the new return line fuel filter and it dumped into the bucket and out of carb

 

Your link works.
To upload pictures directly they have to be under 1MB in size.

 

You can rent/borrow a fuel pressure test gauge from O'reilly auto.

 

@WillyBoy12369 did you ever sort this out? I feel like I’m going through the same thing with a Delphi pump.

 

Fully understand the frustration with mechanical fuel pumps. Don't expect a new one to be a good one.
I replaced 4, yes 4 on my AMC 360. Recently. #'s 2 and 3 never got out of the shop.
Carter 6505
#1 - bent actuator arm
#2- no vacuum
#3- spewed gas out the weep hole
??? brand
#4- engine oil out the weep hole
I ordered electric
Still trying to sort that out.