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  1. DavesJimmy

    Mechanical fuel pumps

    Well finally got the Holley sniper efi system installed. New 87 tank, 87 sending unit, walbro in tank pump. Now the problem... my fuel pump wont shut off even when keys off.. grey to power. Purple to sender. Black to ground.. any thoughts? Maybe a bad relay? oh yeah and it wont start just...
  2. DavesJimmy

    Grille brackets

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  3. DavesJimmy

    Mechanical fuel pumps

    Ok i got the parts in! Which of these connections on the sending unit do i use? Im guessing just the 2 with the threads.. and the other's cap???
  4. DavesJimmy

    Mechanical fuel pumps

    Well heres a list of parts i purchased from lmc to hopefully help with the conversion. All parts where for 1987 chevy/gmc.
  5. DavesJimmy

    Mechanical fuel pumps

    Its a 4!
  6. DavesJimmy

    Mechanical fuel pumps

    Well i got the holley sniper efi master kit it comes with the fuel kit part # 526-5. Which is ment for vehicles that already had tbi. There 526-7 is for later vehicles that where not factory tbi so it comes with a few more parts, extra hose etc..After doing a lot of reading i found out. The fuel...
  7. DavesJimmy

    Mechanical fuel pumps

    Just bought the holly sniper efi master kit from a local performance shop here in town. I also read its preferred to install pump in tank but not mandatory. So im going to mount outside for now. I contacted Tanks inc. Via email they have a chevy truck tank for a 6' bed already converted for...
  8. DavesJimmy

    Mechanical fuel pumps

    I was thinking msd atomic efi, or holly, or fitech. Does anyone run any of these and have opinions? They all seem similar but the msd looks like it installs a little easier??
  9. DavesJimmy

    Mechanical fuel pumps

    Well im going to buy the msd atomic efi master kit. And get rid of the carbs!
  10. DavesJimmy

    Mechanical fuel pumps

    Ok. I bought a gm 350 long block crate engine. All the accessories came off the old engine. Starter, intake, carb, fuel pump, hei, headers, alternator, power steering pump, fan, etc... i did nothing to the engine out of the crate except bolt on all the accessories. Had carb rebuilt and tuned...
  11. DavesJimmy

    Mechanical fuel pumps

    Its a brand new gm 350 crate engine, new balancer. Im going to try some new plugs, check timing again.
  12. DavesJimmy

    Mechanical fuel pumps

    Put in a new msd hei distributor and new wires. Problem is still there :( I slammed the throttle wide open it died and flames where burning out of the carb.. i also noticed that when i disconnected the vacuum advance to set timing i didn't notice a difference in the way it idled.
  13. DavesJimmy

    Mechanical fuel pumps

    Im going to check the distributor. It does stumble then die! Im sure timeing is set right ill check internals, rotor, springs, vacuum advance ..etc... thanks hotrod.
  14. DavesJimmy

    Mechanical fuel pumps

    I got the fuel pump off craigslist when i bought the crate engine i just never pit it on cause of the differences in the number of connections... anyway that carb has 3 different settings for the accelerator pump i tried all 3. None worked pr made it a little better. So i took it to a shop and...
  15. DavesJimmy

    Mechanical fuel pumps

    Its hard to believe that a $430 carb would be that shitty right out the box :/ i guess i could try to throw a holly on there just to see if thats it.
  16. DavesJimmy

    Mechanical fuel pumps

    Its an edlelbrock avs thunder series there 4x4 model.
  17. DavesJimmy

    Mechanical fuel pumps

    Thanks for the info guys... I'm wondering if fuel pressure is why it dies out when i slam on the gas. Its a new crate 350, timings set, carbs tuned, no vacuum leaks.. so o was gonna try a new guel pump..im stumped. I havent checked fuel pressure.. hmmmm:confused:o_O
  18. DavesJimmy

    Mechanical fuel pumps

    My 76 GMC's mechanical fuel pump has 3 lines attached to it.. i have an edlelbrock mechanical fuel pump i want to install but it only has 2 connections? Do I just delete one of the lines and cap it? Or will the edlelbrock just not work period? Thanks for the info..
  19. DavesJimmy

    Th400 bracket ???

    I was thinking the same thing but no vibrations so im not going to. Even at 70mph wich i do 8 minutes of to and from work!!
  20. DavesJimmy

    Th400 bracket ???

    Found it! It was an exhaust bracket. Once someone put in the aftermarket exhaust they didn't reuse it.
  21. DavesJimmy

    Th400 bracket ???

    I was kinda thinking the same thing. And who ever did the custom exhaust didnt reuse it. As for the bushing.im talking about the one that sits on the transmission crossmember separting the trans from the crossmember.
  22. DavesJimmy

    Th400 bracket ???

    I recently started hearing a rattle under my truck. So i got under there and found this "bracket" the end with 3 holes was between the transmission and bushing. The other end was hitting the driver side frame. There where no bolts holding it in place i yanked it out by hand. There are no...
  23. DavesJimmy

    Bigger tires on 2wd - what to do?

    I think this is as big as you can go on a stock wheel to avoid rubbing issues. 32x11.5r15 or in metric 292/74/r15. You could probably also run a 33x10.5r15 like i run on my jimmys stock wheels with stock height but they rub a little when flexing off road
  24. DavesJimmy

    Standard or Deluxe?

    I need to replace my windshield gasket but there's 2 types. How do i know which one i need? Standard or Deluxe? Thanks.:shrug:
  25. DavesJimmy

    Timing or adjust carb after exaust install?

    DAMN SKIPPY BUBBA :emotions34:

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