Ok, Lets clear up a thing or two. Are you running a alt. or a Gen. ?   Does the fuel pump stand up straight or does the top of the pump lean toward the Dist. ?   Was the car running then quit ?
   The angle pump is made for engines running a ALT.  and the straight up pump was used on Gen. engines.   The straight up pump is not easy to take off, as you found out if you have a Alt. I'm going to assume you have a Alt. ( you should have) and a straight up pump for a Gen.
    Once you get the pump off, I would replace it with the angle pump. but listen up.  You will have to replace the pump push rod. Just lift it out.
    The straight pump push rod is longer and if you use it on a Angle pump , it will knock the bottom out  of the new pump the first time you turn the engine over. Don't forget to put a wad of grease on the fuel pump where the push rod rides. I hope I didn't confuse you to much. Just let me know what you have.
    Those pumps are pretty tough so make sure that you have fuel TO the pump and don't have the hoses reversed at the pump.

This also,    You can take the hose off at the carb and stick it in a bottle then  have someone spin the engine over to see if it pumps fuel. If it does you may have a needle & seat problem in the carb.
     I know asking you if the car was running then quit sounds like a supid question, but I had a reason for asking.

I still need to know which pump you have and Alt. or Gen. All these Tips are based on what info that I'm getting so I don't send you down the wrong Garden Path and get us both in trouble. :lol:  :lol:

If its a Angle pump it should come off if it is Alt or Gen. very easy

Just an FYI . . . If you end up needing a new pump, the Brosol fuel pumps coming out of Brazil are crap.  Expect to find about 1 out 4 bad right out of the box and the other three to have a life expectancy of less than three months.  Every now and then you will run across a good on that works and keeps working . . . but don't count on it.  The last two or three years I've had better luck with old "junk" fuel pumps I've picked up at swap meets.