Carb recommendations / fit

[jebirr]

Just bought 72 340 Cuda. Previous owner put undersized manual choke Edelbrock AVS carb. DIdn't hook up the choke. Add on chock kinda pricey so thinking about just swapping whole carb out.

Is anyone running a Demon with stock intake and especially stock air cleaner? Want to stick with stock air cleaner and intake. Considering just getting a larger AVS with electric choke (which I know air cleaner will fit) but Demon looks attractive as well.

Thanks

 

[540HemiCuda]

Are you referring to the 'Street Demon'? That is my go-to carb for stock to near stock combos. I have installed several. They have electric chokes standard and can interfere with the air cleaner on some applications.

 

[jebirr]

Are you referring to the 'Street Demon'? That is my go-to carb for stock to near stock combos. I have installed several. They have electric chokes standard and can interfere with the air cleaner on some applications.

Yes - Street Demon. Really want to maintain stock air cleaner and am concerned about interference with - thus the post. Makes me wonder if Edelbrock with electric choke would interfere too as mine doesn't have choke on it.

 

[bennydodge]

Yes - Street Demon. Really want to maintain stock air cleaner and am concerned about interference with - thus the post. Makes me wonder if Edelbrock with electric choke would interfere too as mine doesn't have choke on it.

Yes, the stock single snorkel 340 air cleaner will work. I've ran this setup for many years with no issues.

 

[Chryco Psycho]

My Fav carb is the Profom , might want to check those out .
If you are just using the car in warm weather you should be fine without choke .

 

[Xcudame]

Street Demon will work. But a 72 came with a Thermoquad from the factory and are so awesome when those huge secondaries open up!! Thermoquads are easy to rebuild, even if the throttle blade shafts have to be re-bushed (biggest issue with some used ones).

 

[540HemiCuda]

Thermoquads were good carbs. But the new Street Demons have all of the Thermoquad's features and a few more, PLUS the new Street Demons do not have a gasket under the fuel. The Thermoquads have ALWAYS been prone to leaks under the fuel bowl because of that. Even back then.

I NEVER recommend Thermoquads anymore. The bowls can warp and not be able to be sealed. The throttle shafts can be rebushed, but why go to that trouble when a better, new unit is available for probably less money when it's all said and done. And finally, there are realistically no rods and jets available for them anymore. And they were jetted for very different fuel than they are delivering today.

Try a Street Demon and you will see why I don't use the CarterBrocks anymore. Or the Thermoquads. The new Street Demons are THE carb for milder combos today.......bar none.

Now, if you have a bumpy idle, the 4150 Holley platform (though not necessarily Holley anymore given their problems) is a better choice for those applications.

The only problem I have seen with the Street Demons is that the electric choke sits high enough on the carb that it can hit the air cleaner. But a spacer between the carb and the air cleaner (IF there is enough room under the hood and there usually is) will remedy that.