Late flattie V8 intake manifold

[twodps]

I'm looking for opinions and experience on using a 2x2 or 2x3 intake manifold for my V8 flattie? There must be info on this, but to much to go thru.

 

[tubman]

Here is probably the definitive article on the subject : https://www.hotrod.com/articles/hrdp-1301-flathead-ford-intake-manifold-smackdown/.

Also, you must change the distributor from stock when going to multiple carbs on a late flathead if you want it to run properly. The stock distributor on a late model flathead is very specialized unit (called a "Load-a-Matic") that will work correctly only when combined with a single stock carburetor. There is a thread below titled "Vacume (sic) source" that goes into this in depth.

 

[Ol' Ron]

I think you need to read John Lawson's Book "Flathead facts". He covers this topic, including Dyno results. Also remember the stock ignition will not work with these modification. You can get the book from Max VP

 

[JSeery]

Most claim that 2x2 run the best. They also have the advantage of easier to tune and easy linkage. The 3x2 setups look cooler (IMO), but are more difficult to tune and the linkage can be more of an issue. I like the 3x2s myself! Was never into easy!!!

 

[Licensed to kill]

Most claim that 2x2 run the best. They also have the advantage of easier to tune and easy linkage. The 3x2 setups look cooler (IMO), but are more difficult to tune and the linkage can be more of an issue. I like the 3x2s myself! Was never into easy!!!

Do they not use progressive linkage?

 

[JSeery]

Do they not use progressive linkage?

Sure do, that is what I posted, the 3x2 is more difficult to setup (progressive linkage) vs 2x2 using straight linkage. Progressive linkage works, but it is more difficult to get working correctly than straight linkage. Just like setting up 3 carbs is more difficult that 2. You can use straight linkage on a 3x2 (or 4x2 for that matter), but the progressive is the more common approach.

 

[twodps]

I think you need to read John Lawson's Book "Flathead facts". He covers this topic, including Dyno results. Also remember the stock ignition will not work with these modification. You can get the book from Max VP

This is what I was looking for. Saw "JWL's Book" mentioned several times in a much earlier thread. Thank You

 

[twodps]

Here is probably the definitive article on the subject : https://www.hotrod.com/articles/hrdp-1301-flathead-ford-intake-manifold-smackdown/.

Also, you must change the distributor from stock when going to multiple carbs on a late flathead if you want it to run properly. The stock distributor on a late model flathead is very specialized unit (called a "Load-a-Matic") that will work correctly only when combined with a single stock carburetor. There is a thread below titled "Vacume (sic) source" that goes into this in depth.

Good to know. I have upgraded my distributor so maybe I have this covered. I will check out the reading too out. Thanks Tubman!

 

[twodps]

Most claim that 2x2 run the best. They also have the advantage of easier to tune and easy linkage. The 3x2 setups look cooler (IMO), but are more difficult to tune and the linkage can be more of an issue. I like the 3x2s myself! Was never into easy!!!

This was my thinking. 3x2 Looks cooler, costs more and harder to work on of course.