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  1. diymirage

    fuel pressure dropping over time

    been able to take the duster on some short trips around town, and ive noticed something annoying...after a while the fuel pressure drops starting at the back there is a new (so clean socked) 3/8 fuel sending unit running through a 3/8 fuel line to a carter M6270 mechanical pump then into a...
  2. diymirage

    drilling a hole in the tank

    just spit balling here but im thinking on redoing the return nipple on my fuel tank (I'm hoping I can drill out the sending unit and put a larger bulk head in) but if not, can I just drill a hole into the tank ? how do I keep the shavings from dropping in?
  3. diymirage

    any reason not to cut it?

    hey guys as some of you may know, I have a real spiffy cold air system on the duster (pics to follow) now, I found a flaw in my setup, where I can't just pop the wignut off to inspect the airfilter and carb so, the housing is 14 inches across there is a dip at 10.5 inches and the filter is...
  4. diymirage

    holley 4 barrel flooding

    hey guys so i changed over my fuel system today and i ended up having the car towed home it is a 71 duster with a 408 in it it was a 5/16 dead end fuel system, set to 6 PSI i installed a 3/8 fuel sending unit and used the 5/16 line as a return the carburetor is a quick fuel 4 barrel...
  5. diymirage

    maximum tank level without sending unit

    i think im finally getting ready to replace my fuel sending unit i think i have about 3/4s of a tank (though the gauge reads 1/2) is that low enough to pull the sending unit without getting showered?
  6. diymirage

    cowl mounted fuel pressure gauge

    just spitballing here, and probably will never happen but curious after all i got a fuel pressure gauge on the fuel log on my 408 im thinking of temporarily putting it on the cowl so i can see it while driving seems simple enough to get some braided fuel line and move it up but how do you...
  7. diymirage

    splicing fuel line at the frame rail

    hey guys i bought a new 3/8th pre bend fuel line for the duster, but there is no way i am going to be able to thread it through the frame rail id imagine the lesser connection the better, so should i just cut it and reconnect it with a piece of flexible line? or does it make more sense to...
  8. diymirage

    dumb question

    im gathering parts to redo my fuel system and i can for the life of me remember if i used AN6 or (more likely) AN8 can i just put a wrench on it and find out?
  9. diymirage

    best engine bay place for a fuel pressure gauge

    one of these days im gonna install the return line on the fuel system when i do, i might move the fuel pressure gauge from the fuel log to a port on the regulator since the regulator will be mounted in the inner fender i thought i might get a better reading there then on the fuel log does...
  10. diymirage

    vacuum reference port

    this year i am finally going to install a return line in my 71 dusters fuel system i just bought a new regulator, and it comes with a vacuum port is there any advantage to hooking that up? in theory, it would give me a higher fuel pressure at the carb at WOT but i dont know if i need it i...
  11. diymirage

    Going to switch out the sending unit..

    On my 71 duster It started out as a /6 and is now a 408 I plan on upgrading to a 3/8 fuel line and using the stock line as a return Anything I should look out for, or is this a simple project I can do with the car on Jack stands?
  12. diymirage

    How much should I expect...

    When I pull the fuel line between the sending unit and the hardline? It's been collapsing on me and I want to replace it...should I expect a shower or a drip?
  13. diymirage

    basic Holley 4 barrel cleaning?

    ok, a proform 750, but pretty much a holley about a month ago i fouled a fuel filter and in order to make it back home i ran the car without a filter of course, all the crap that clogged the filter now got into my carb it wil run fine one moment, then idle really high...i caught her doing...
  14. diymirage

    throttle not closing all the way

    hey guys i had a clogged up fuel filter the other day, and to get home i ran her without a filter for a few miles im guessing thats where the issue came from, but the throttle doesnt want to close all the way (i got her to idle at 750 in neutral, 600 in gear) every once in a while , it wont...
  15. diymirage

    fuel return line

    so, im a slow learner, but i just had an idea i think it is time to upgrade the stock fuel lines as it sits right now, im running 5/16th from the tank to the mechanical pump, and AN-6 lines from there to the (non return) regulator, and into the carb so, since im thinking or replacing the...
  16. diymirage

    fuel pressure drop

    71 duster with a MRL build 408 dropped in a while ago I took her to the dragstrip for the first time and noticed she was running out of breath so I decided to upgrade the fuel pump I installed a carter M6270 mechanical fuel pump , a filter a pressure regulator and a gauge (in that order) I...
  17. diymirage

    "cold air intake" piping size

    hey guys i am considering putting a "cold air intake" on my duster i would utilize a spectre air cleaner housing like this one 98648 - Spectre , Low Profile 14 In. OD x 5-13/32 H - 135 Degree Chromed it would be much like the olds W30 ram air packages, with two aluminum intercooler style pipes...
  18. diymirage

    running out of breath in the 1/4 mile

    hey guys yesterday I got to take my duster to the strip for the first time drove the car out there (about an hours drive) made a few passes and drove her back home altogether, I'm pleased but I did have an issue making the actually passes about the time the car hit 3rd gear (727 auto) she...
  19. diymirage

    dumping the tank vent

    hey guys im hoping to drop a 360 in my 71 duster here shortly the 360 will have a chrome single nipple breather instead of the 2 nipple that was on the /6 which means I have no where to go with the tank vent can I just put a small T in the hose running from the breather to the airfilter...
  20. diymirage

    pump to carb fuel line

    hey guys im going through the 360 before I drop it back in and im wondering what to do about the fuel line that runs from the pump to the carb (the carb is a eddy 600) summit lists about 30 lines that "should" fit but im not sure which one I would need anyone have a part number?
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