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MSD Ignition Atomic EFI Master Kit Max 525 HP

121-2900

made in usa

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MSD Ignition 2900
$1,274.95
More than 10 available
Atomic EFI Master Kit
  • Max 525 HP
  • CARB E.O Number D-722
  • Free Shipping - Ships
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    Items You May Also Consider

    2900 - MSD Atomic EFI is rated 3.9 out of 5 by 10.
    Rated 5 out of 5 by from Car seams to run better I installed this 2 weeks ago , only have a little over 100 miles it's still learning and so am I . I added the fuel damper , now just need to get the idle down a bit . It has gone crazy fast to insanely fast .
    Date published: 2019-04-28
    Rated 5 out of 5 by from Couldn't be happier I bought this to replace a carburetor on a 77 Thunderbird (400 engine) that i didn't want to mess with anymore, and it was the best choice I could have made, (over a new carburetor). It starts on hot days, and cold days and idles perfectly. There was a massive power increase that I never got with a carburetor. I have been using this car daily for work for almost a year now and has yet to let me down. All questions I had, the instructions answered. I have it set up as advertised, (non return style) and have had no issues other than it needs 92 octane or above or it doesn't run very well. I will be buying more of the atomic EFI setups for my other project cars. Even convinced my dad to get one he liked it so much!!
    Date published: 2018-10-20
    Rated 5 out of 5 by from So good I'm going to buy it twice I recently installed this unit on my 1962 GMC pickup with the original 305ci V6 engine. The kit installed so easily it was like it wanted to be there. After tinkering with the A/F Ratio settings and other parameters, my truck is running better than I thought it could. That old engine used to run out of steam around 60mph (probably because I could never get it tuned right with a carburetor) and now it cruises right up to 100mph before I even realize it. The kit is so good, I'm going to buy one for my 1968 Impala.
    Date published: 2015-09-18
    Rated 5 out of 5 by from Excellent system The atomic EFI system is excellent and I am very pleased at how easy it was to install.I just finished installing the system and it runs great.All I have left is to drive it and a few detailing items.I think I will be very happy once I am totally finished.I am already happy with the way it starts in cold weather.With a carburetor I had starting problems and I was not happy with it.Can't say enough about this system.Thanks.
    Date published: 2015-02-15
    Rated 4 out of 5 by from Atomic Replaced carb with the MSD Atomic ego. 350 engine runs really good now. 8 out of 10. Nice unit.
    Date published: 2019-10-05
    Rated 4 out of 5 by from Good product but pricey First let me say this is a well-made product easy setup plug and play system. That being said the major reason for buying this over the other competitor’s EFI systems is purely compatibility with the other MSD items I have on my truck. My 383 is street able @ a little over 500hp but if you’re thinking of building up from 650hp and over forget it. MSD will not handle it now but wait with technology changing they’ll build something to keep up. Again good made product but to pricey for the HP. Shop for the EFI that meets your needs there are less expensive ones. And I bought this from Jegs because SUM&^# customer service stinks.
    Date published: 2016-01-09
    Rated 4 out of 5 by from Great way to convert to fuel injection I bought this item when it was on sale a few months ago. Installing it was straight forward. The manual is easy to understand and any questions I had were answered by knowledgeable Techs on the phone. I have not yet driven the car ('63 Thunderbird) as it is now winter. The engine runs good in the shop. I am anticipating a good season of trouble free driving.
    Date published: 2015-12-10
    Rated 2 out of 5 by from Inconsistant I had a certified mechanic install the MSD Atomic on my brand new 383 crate motor. Some days it works well. Other days it will stall and bog down. Paid a lot of money for this and I am sorry to say I am disappointed.
    Date published: 2016-04-28
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    I have an MSD 8529 ready to run distributor with a vacuum do I need to change that out to Sintra fickle advance distributor or is there something I can do with my distributor to use it.   Also can I use the MSD 6A on the system.

    Asked by: Tony 442
    This distributor will work with the Atomic kit.
    Answered by: Rusty B
    Date published: 2018-07-20

    Does this Kit plug into my 6AL box and Distributer 

    Asked by: Jmcjohns57
    This kit will connect with the wiring from your distributor.
    Answered by: Rusty B
    Date published: 2018-06-13

    I have an 82 K5 Blazer with full smog appliances (Cali Car). With this being a CARB legal kit, what can I eliminate off the manifold? Lots of vacuum hoses to the carb, EGR valve etc.

    Asked by: Mboom
    If you want to remain California legal you would need to retain all those items
    Answered by: SteveM
    Date published: 2017-12-29

    Im building a 355 sbc and im gonna be right at about 12-1 compression and id like to be anle to run 91 octane but to do so i have to reduce the timimg will i be able to use this product as well as the MSD 6AL-2 ignition box to do that with out issues?

    Asked by: Perkins
    Yes, this unit will allow you to control the timing and the fuel injection pulse width.
    Answered by: Rusty B
    Date published: 2017-12-22

    Will this kit work on a 1979 Ford F-250 6.6Lt 400cid? The engine has an Edelbrock performer intake, mild street/strip cam, MSD 6AL controller and MSD distributor w/o vacuum advance.

    Asked by: 79F250
    Yes the MSD Atomic system will work on your motor.
    Answered by: Dean R
    Date published: 2017-12-13

    Plan on building a 5.3l ls engine and running the carb intake with msd controller box. I will have a 700r4 trans behind it and more than likely put it in a 92 chevy c 1500. I like the simple wiring and did not want to cut and splice wires all day.

    Asked by: 3Wood
    Hello, If you are asking if this will work with that app, yes it will work with that 5.3.
    Answered by: BrandonJ
    Date published: 2019-12-06

    Will this system work with a 1977 Chevy stock 454? And which MSD distributor is recommended to work with this system and my engine?

    Asked by: Slow Roll 77
    This system would be compatible with your vehicle. An MSD 8360 distributor would also be needed.
    Answered by: Jon Jegs Tech
    Date published: 2017-11-09

    looking to put an EFI on a ford 390, only have 2 ports in intake to install temp sensor, 1 is used for temp guage, the other is for heater. there is one in thermostat housing that is not in use but on the col side of thermostat. any suggestions?

    Asked by: C Lynn
    Another port may have to be drilled into the intake for the sensor.
    Answered by: Jon Jegs Tech
    Date published: 2017-09-29
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