Intake/carb adapter question

[PatrioticMopar]

Hey all,

This old Mopar performance single plane intake came with the 318 when I bought my 1972 Plymouth Duster. I just swapped an old Holley spreadbore for a 1406 Edelbrock Performer carb.

The manifold is set up with bolts for different carb styles, but it looks like a Thermoquad/spreadbore style intake.

My question is do I need to run an adapter from spreadbore to squarebore on this intake? Thanks in advance.

 

[RustyRatRod]

No. All you need is the Edelbrock flat steel plate that seals off the sides of the secondary barrels. Here it is:

Edelbrock 2732 Edelbrock Carburetor Adapters | Summit Racing

 

[Professor Fate]

Drop it on there and try it. Move the studs to appropriate holes if needed for your carb. Work the linkage and see if there is any interference- sometimes you need to run the thick gasket (1/4"?) for some linkage clearance. I think Eddy makes a plate if the secondaries come too close to the edge...

 

[Professor Fate]

Ya beat me, Rusty!

 

[PatrioticMopar]

No. All you need is the Edelbrock flat steel plate that seals off the sides of the secondary barrels. Here it is:

Edelbrock 2732 Edelbrock Carburetor Adapters | Summit Racing

Thanks!!!!

 

[RustyRatRod]

Thanks!!!!

muh huh. Our local O'Reilly stocks that, so the closest one to you may as well.

 

[PatrioticMopar]

muh huh. Our local O'Reilly stocks that, so the closest one to you may as well.

Mine did too... already picked it up

 

[K.O. SWINGER]

If at all possible do yourself a favor and get a nice small block thermoquad to go on top of your setup. That's what that manifold was designed for and is a very Worthy combination and just flat hard to beat.

 

[Bewy]

Yup, what KO said....