I have a 58 292 w/holley 2v. I bought an ECZ-9425-A intake this weekend.  Is it worth it to swap to the 4v or just put

the big Holley 2v on my existing intake. The car is used for pleasure driving only. Thanks!

58Rancho. The "A" manifold is pre-1956 and takes the small base 4 barrel (Holley Teapot or Carter WCFB). You will need an adapter to use any of the more "modern" 4 barrels.



You probably will be happier with the set up you have. Just my 1¢.

"The Master Cylinder"

Enjoying life at the beach in SOCAL

Thanks for the info.  I thought the carb inlets looked small, but it was only a $10 investment!

MC; Shouldn't that be pre 1957?..

Paul

From a performance perspective, the two barrel intake with a 500 cfm Holley will outperform the ECZ-A manifold being used with an adapter and later model larger carb.  From an efficiency perspective, the ECZ-A manifold with its smaller runners will be exhibit more torque in the lower rpm band while also having the potential for higher mpg under the same driving conditions.

Lorena, Texas (South of Waco)

say Ted, have you checked a late 2bbl manifold with 4bbl adaptor against a early small 4bbl manifold with a late adaptor, using the same 4bbl carb?

 lincoln/merc. y-blocks &mel's                                                               bucyrus, ohio.

Paul, Of course you are correct. What I meant to say was 1956 and before, but I changed it to read pre-1956. This was all before I had a brainphart and forgot what I was doing. In other words a typical senior moment.



Thanks for correcting me.

"The Master Cylinder"

Enjoying life at the beach in SOCAL

Nope.  Might consider doing that for a future single four intake dyno test but that’s going to be a ways down the road.

Lorena, Texas (South of Waco)

Thanks for the responses! Would there be any advantage when using the Carter WCFB over what I have now? I prefer the

original look, but not if there will be no gain!  JQ

The a manifold is restrictive so I don't doubt it going to help. Reread Ted's post. I'll stick with my original statement, What you got is better...



Ted's statement:



"From a performance perspective, the two barrel intake with a 500 cfm Holley will outperform the ECZ-A manifold being used with an adapter and later model larger carb. From an efficiency perspective, the ECZ-A manifold with its smaller runners will be exhibit more torque in the lower rpm band while also having the potential for higher mpg under the same driving conditions."



Ted

Lorena, Texas (South of Waco)

"The Master Cylinder"

Enjoying life at the beach in SOCAL