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  1. flathead31coupe

    73 duster vented gas tank ?

    I am not wanting to use the canister set up as of now. It's vented to that steel line on the passenger side Fender. Just didn't know if I needed to put a vent or some kind of filter on the end of that steel line on the passenger fender
  2. flathead31coupe

    73 duster vented gas tank ?

    Mine just has the nipple at the top of the tank above the sending unit. There's a rubber hose that connects to a steel line. That goes all the way up to the passenger side on the interfender and Bends up to a Thirty five or forty five degree angle and that's it
  3. flathead31coupe

    73 duster vented gas tank ?

    So if I use this vent and mount it on the firewall as I would like to. I will still smell gas correct at times..
  4. flathead31coupe

    73 duster vented gas tank ?

    I agree so you put one of those rollover vents in your picture
  5. flathead31coupe

    73 duster vented gas tank ?

    Thanks, I was also just reading that someone suggested. You could put a rubber line on it and run it to the PC v valve. Is that an option
  6. flathead31coupe

    73 duster vented gas tank ?

    Do you think it would be okay to mount that vent on the firewall instead of out front by the fender , it would probably look a little better
  7. flathead31coupe

    73 duster vented gas tank ?

    I have done a search on this , but as I said before , it is all over the place, It would be nice to know that if a person wants to do away with that venting set up , this is what they could do.... Info would be appreciated. I'm sure by me as well as others. Any help is appreciated
  8. flathead31coupe

    73 duster vented gas tank ?

    So what do I do if all of that is missing except for the steel line coming up by the front Fender? And and the rubber hose that goes to the gas tank at the top vent
  9. flathead31coupe

    73 duster vented gas tank ?

    Where do you install it....could I ind stall a earlier duster filler tube in the tank
  10. flathead31coupe

    73 duster vented gas tank ?

    While messing with the sending unit on my duster, I noticed that the vent line at the top of the gas tank was not hooked up. There was a short rubber hose than a going up to the is. No canister. what's my best option? I have did a search but it is all over the place thanks
  11. flathead31coupe

    Charcoal Can Fans, should I?

    I have been wondering what this is...it's not hooked up
  12. flathead31coupe

    Fuel pressure dropping while driving and under acceleration to zero at idle runs 4 lb electric Blue

    Thanks. Your inbox is full.. didn't know if you'd be interested in the 250 fuel pump.
  13. flathead31coupe

    Fuel pressure dropping while driving and under acceleration to zero at idle runs 4 lb electric Blue

    So new update. I hate to admit this but after all this trouble and all the good advice you guys give which I have taken. Turns out my 40 micron stainless steel filter is plugged which was the first thing I checked and it seemed clear and it seemed like it looked good but I never really blew...
  14. flathead31coupe

    Fuel pressure dropping while driving and under acceleration to zero at idle runs 4 lb electric Blue

    So what do you think? I would say that I'm only going to run probably four and a half or five on my regulator. Going to the two Carter competition series carburetors.. What should I set the bypass for on the Mallory 250 to be safe
  15. flathead31coupe

    Fuel pressure dropping while driving and under acceleration to zero at idle runs 4 lb electric Blue

    I had a question with the Mallory 250 pump. It says if you take apart or disassemble the unit and put it back together to test the bypass pressure and adjust it between 13 and 18 PSI. How would I do that. Do I deadhead the regulator with a gauge and set the regulator or the? I'm sorry the bypass...
  16. flathead31coupe

    Fuel pressure dropping while driving and under acceleration to zero at idle runs 4 lb electric Blue

    I am going to test the Mallory 250 the same way next week let's hope I don't have the same results lol
  17. flathead31coupe

    Fuel pressure dropping while driving and under acceleration to zero at idle runs 4 lb electric Blue

    Thanks for all the replies. When I pulled the supply off of the sending unit it was flowing out free flowing full stream like you had to faucet turned on. I just can't believe that it could be this hard to figure out. People's been running electric fuel pumps for years. Without seeing it. It's...
  18. flathead31coupe

    Fuel pressure dropping while driving and under acceleration to zero at idle runs 4 lb electric Blue

    I did that. There's no change in flow. It was real weak after the regulator and before the regulator
  19. flathead31coupe

    Fuel pressure dropping while driving and under acceleration to zero at idle runs 4 lb electric Blue

    Just an update. Haven't worked with the Mallory fuel pump yet, but the fuel pump in question the new Holly blue. I hooked it back up with the filters to my existing lines and ran it from the regulator to a gas can and it barely trickled out so.... Along with deadhead the regulator and it not...
  20. flathead31coupe

    Fuel pressure dropping while driving and under acceleration to zero at idle runs 4 lb electric Blue

    Ok thanks... I'm still getting ready to put that Mallory 250 in place of the holly blue fuel pumps. Unless there is a restriction somewhere that I don't know about by blocking off the return line from the regulator and putting a gauge on the inlet side of the regulator from the pump that should...
  21. flathead31coupe

    Fuel pressure dropping while driving and under acceleration to zero at idle runs 4 lb electric Blue

    Can you bench test electric fuel pumps with mineral spirits. And a gauge on the one end of the pump..?
  22. flathead31coupe

    Fuel pressure dropping while driving and under acceleration to zero at idle runs 4 lb electric Blue

    Thanks for all the info. I've been over a lot with the guys here and realize that the holley pumps do push better than pull. By me, eliminating the bypass and putting a gauge before the regulator has determined that both pumps are not putting out enough pressure . Even the one that I replaced...
  23. flathead31coupe

    Fuel pressure dropping while driving and under acceleration to zero at idle runs 4 lb electric Blue

    I receive my Mallory 250 today. We will see what happens.
  24. flathead31coupe

    Fuel pressure dropping while driving and under acceleration to zero at idle runs 4 lb electric Blue

    Well, it looks like it's turning out that I don't have enough volume to run. The pressure is good but the volume will not handle. The two four barrels is what somebody's telling me. The 3/8 line and 3/8 return does not handle enough volume to keep the float bowls full. It's got plenty of...
  25. flathead31coupe

    Fuel pressure dropping while driving and under acceleration to zero at idle runs 4 lb electric Blue

    I was noticing on that fuel pump as a return line. Hoe was only quarter inch so I may be in good shape
  26. flathead31coupe

    Fuel pressure dropping while driving and under acceleration to zero at idle runs 4 lb electric Blue

    How much lift can one of those pumps handle are all of them about the same? They are better at pulling then pushing because if it would work I would like to run my supply line up and around like it was originally. So it's out away from the rear end and everything. But if it's not going to work...
  27. flathead31coupe

    Fuel pressure dropping while driving and under acceleration to zero at idle runs 4 lb electric Blue

    Well, it turns out that the Mallory fuel pump I bought was a 5250. It's a series 250, not 240. Let's hope it's not too big lol
  28. flathead31coupe

    Fuel pressure dropping while driving and under acceleration to zero at idle runs 4 lb electric Blue

    Ok thanks, I found this looks like it would make a return line easy without dropping the tank. Some say you need it close to the bottom but away from the sending unit. Other say on top opposite of the sending unit or supply. My current return is in my sending unit going straight back into the...
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