What size 4-barrel carburetor did you use to replace your 2-barrel? A small 4-barrel would have smaller primaries than an equivalent cfm 2-barrel? Were your 4-barrel carburetor and distributor compatible?

I want to go the other way.

I had a 2 hole Holley and bought a 4 hole intake for my 292 and put on an Edelbrock.

Now I wish I still had a 2 hole.  There is no real "performance" increase but a marked decrease in MPG.  Not like my 292 was a racer to begin with.

I do like the look of the aluminum intake I have but since this car is just a long low custom I'd rather have the gas mileage back.

Anyone have success using an adapter to go the other way???




1959 Edsel Ranger, 1916 Ford "speedster"
"I may not be a rich man, but I can give you a million dollars' worth of bad publicity."

flash backs are Great to hear that's what we all do 

have 272 stock with dual exhaust, three spd with OD.  want to use to enjoy  shows and roll in and just good driving 

I have what I believe to be stock 272 , with 2 barrel carb, dual exhaust, three on tree with OD

my goal is to have a fun car to enjoy around at shows and cruises.  

When we were kids in the early sixties I used to think 272s ran better.  We were buying used engines for $50 bucks back then. We would hose them off, paint them with a spray can and throw them in.   The 272s we were buying ran better because they weren't all beat up, they mostly came out of little old lady cars.  I believe all '57 Y Blocks came with the good heads, even 272s.   A good running 272 with a '57 carb, manifold and distributor will make you smile.  Thinking back, I can't believe how we abused those cars.  Yikes...  (Sorry for the flashback).

Yes, upgrading the exhaust system, away from that power robbing crossover setup, would be a fairly strait forward idea..


Paul

The response has been great!!!  I am leaning toward what i did back in day.  57 intake holley carb and the newer dist. Also do some work on exhaust. 

Welcome to the site.
 
If wanting to stay with a two barrel carb, then upgrade to a 1957 and newer two barrel cast iron intake.  Then use a four bolt two barrel carb with at least 350 cfm being desirable.  With the intake manifold and carb change, also upgrade the distributor to the 1957 and newer style that incorporates both a centrifugal and vacuum advance.
 
If wanting to go the four barrel route, then the larger flanged four barrel intake (oem iron ECZ-B, aluminum Blue Thunder, or aluminum Mummert) with a modern carb would be the way to go.  With any modern carb ('57 and up) upgrade, go with the later model distributor.  The Summit 500 cfm carb would be a good choice for the stock cammed 272.  Any kind of camshaft upgrade could have you taking advantage of a larger carb without sacrificing lowend power.

Lorena, Texas (South of Waco)