intake and 4 barrel carb options for 70 newport?

Engine, Transmission & Driveline

  1. BAD69FURY

    BAD69FURY Member

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    Looking to upgrade my 70 newport with an edelbrock 4 barrel carb and matching intake.

    Anyone done this already? what carb and intake should I get? part numbers?

    my 1970 newport has a stock 383 motor

    thanks
    Mike
     
  2. BAD69FURY

    BAD69FURY Member

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    D38EA1B3-816D-47F9-88FA-613A6961A5D3.jpeg
     
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  3. Dana

    Dana Woodruff Carburetor Specialties FCBO Vendor

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    Mike, nice car. I’m a sucker for the hard tops. The Edelbrock #’s you’re looking for are carb-1406 intake-2186 I’ll have to look, but I’m pretty sure I have a 1406 that I could rebuild or restore for you. It would save you dough. PM me if interested.
     
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  4. furious70

    furious70 Active Member

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    Are you willing to use an aftermarket air cleaner?
     
  5. Davea Lux

    Davea Lux Old Man with a Hat FCBO Gold Member

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    The other choice if you want to keep a more stock appearance, would be a factory cast iron manifold with an AVS carter. The '70 383 with 2BBL had a lower compression ratio than the 4BBL versions but you should still get a performance boost.

    Dave
     
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  6. Mr onetwo

    Mr onetwo Well-Known Member

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  7. 69 300 vert

    69 300 vert Active Member

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    That's a really nice clean car! The intake and carb are the easy parts. It's the fuel line, choke and transmission kickdown parts you'll need to get right. My brother had a similar situation on a '68, he used an Edelbrock DP4B (if your car has A/C, you'll lose an A/C brace w/ the DP4B) and an OEM Holley 4 bbl, don't recall what it was from anymore. And a roadrunner air cleaner without the pie pan, those were easy to come by in the mid seventies.

    If you use an older AFB, remember the air horn is smaller than the AVS, Thermoquad, Quadrajet standard 5.1/8", 4.7/16" for the older AFB if memory serves.
     
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  8. cbarge

    cbarge World Famous Barge in a Budget FCBO Gold Member

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    2186 intake with 750CFM Eddy carb. 68 383 Newport Custom
    My car was a 2bbl car.
    For a stock look I grounded off the Edelbrock name off the intake and painted engine color,and use a factory 4bbl air cleaner.

    You can get away using the 2bbl throttle cable but can use a slant six cable from any Mopar (it is longer) or the correct 4bbl throttle cable.
    I did install the correct 4bbl trans kickdown linkage and adjusted it accordingly.

    Get a carb with electric choke.
    Use the switched side of the ballast resistor (blue wire) to power the choke up.
    With electric choke,the exhaust heat crossover passage is not needed so I recommend blocking it when installing the turkey pan and intake. Reason is keep the temps down at the base of carb to eliminate fuel perculation.

    Make sure you get the throttle adapter for the carb to work on Mopars.

    Hope this helps.
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    Last edited: Jan 21, 2020
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  9. cbarge

    cbarge World Famous Barge in a Budget FCBO Gold Member

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  10. Snotty

    Snotty Senior Member FCBO Gold Member

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  11. cbarge

    cbarge World Famous Barge in a Budget FCBO Gold Member

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    Snotty,you are right to a certain point.
    It is just a matter of matching the right components that will work well togther.
    For example;
    On the 66 300 383 4bbl car that I revived,I used a 625 CFM carb since the motor retained its stock bore and cam,lo-po exhaust manifolds,with TTI system, and stock torque convertor with 2.76 gears and 14 inch tires 26 inches tall.

    On the BoaB,I am running a 750 which works very wellon my .40 over-bored 383 with the 268 H Comp Cams, the mild headwork done on the 906 heads,HP manifolds,TTi system,2.94 gears and mild stall in convertor,and 28 inch tall 15 inch tires.

    Both cars perform very well since both were well thought out before the work was done. Both are perfect highway cars but the BoaB has quicker acceleration obviously.

    A 750 can be tuned to run on a stock lo-po 383 since Ma used 800/850CFM Thermoquads on low compression 400/440's,LOL
    Regardless of what set-up is used,the fine tuning is where itt will make a huge difference.
    Throwing parts at it can make improvements--fine tuning will Make it work!!
    Cheers.

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  12. Dana

    Dana Woodruff Carburetor Specialties FCBO Vendor

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    750 Edelbrock/800 Thermo quad
    Apples/Oranges
     
  13. cbarge

    cbarge World Famous Barge in a Budget FCBO Gold Member

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    I run an 800 CFM Thermoquad on my 73 Satelitte wagon's 318!
    Runs great! Pulls hard!
    Yet when driven properly I can get 24 MPG thanks to the smaller primary jets.
    20191020_134729.jpg
     
  14. Snotty

    Snotty Senior Member FCBO Gold Member

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    I would point out that in your modified motor you're using the larger CFM Carb. I still wouldn't on a stock 383.

    I am using one on the AMC 401 we built for the Gremlin. However, like the 383 you describe for the BoaB, it is not stock: .030 over, Isky 270 cam, 9.5:1 Speed-Pro pistons, Eddy Performer intake, Hedman Hedders, electronic ignition.
     
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  15. cbarge

    cbarge World Famous Barge in a Budget FCBO Gold Member

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    Which is why I used a smaller Eddy carb on the stock 383 in the 66 300.
    We are on the same page,LoL
     
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