y block carb help


http://209.208.111.198/Topic74400.aspx 		Print Topic | Close Window

By lawdogg1 - 13 Years Ago
Ok i am a bit lost, I have a bone stock 272 engine with a 2 barrel carb in my 56 f100. I would like to change the manifold to accomodate a 4 barrel carb or tri power. as far as I know from what I have been told..is that if i make that change I must get a new distributor for a 57 y block. is that a must for either project? i have recently been told that if just want to change to a 4 barrel carb with a 4 barel manifold that a new distributor is not necessary. can anyone help with this.
By Rono - 13 Years Ago
Lawdogg1;

If you want to use a 56 4bbl intake and let's say a 56 4 bbl carb like a teapot, you can still use your 56 dizzy which is a vacuum only dizzy. If you want to upgrade to a 57 or later intake manifold like a ECZ-9425B, you can use a modern 4bbl carb because the base will match the intake. However, you will need to change to a 57 or later dizzy which has both the vacuum and mechanical advance.

Hope this helps.

Rono

By speedpro56 - 13 Years Ago
When going to a later 2v or 4v carb a 57 and up distributor is a must periodBigGrin.
By Daniel Jessup - 13 Years Ago
do a search for "loadamatic" on the forum here and you will see what we mean...
By Grizzly - 13 Years Ago
Only Ford and VW used a system for advancing ignition timing by referencing air flow through the carb venturi. carbs and distributers up to 56 used this system. 57 and later y blocks use conventional mechanical and timed vacumme advance.

To do it right, it's a bit of a pain as it requires a different dizzy, manifold and carb but the results are worth it. With increased crispness and response and (perceived) additional power everywhere you wonder why you didn't do it earlier.  

cheers

Warren