272 yblock with teapot carb. Can I replace the teapot with a modern carb?


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By mgcookiewva - 10 Years Ago

Can I replace my teapot carb with a new holly using an adapter rather? , rather  than go to all the expense of finding a 57 intake manifold that would make it easier.
Thanks for your help!
 
By GREENBIRD56 - 10 Years Ago
You can find an adapter for that purpose at Speedway Motors over in Lincoln, Nebraska. Once the carb is on there you'll have to figure out a distributor arrangement.
By GREENBIRD56 - 10 Years Ago
The teapot carb is usually coupled with a Load-o-Matic distributor that utilizes specific vacuum signals from ports of that carb. When you put the later style carb on, it won't have the signals to make that work - so a different distributor will be needed.
By Ted - 10 Years Ago
As Steve brings up, the 1955 distributor (Load-O-Matic) is vacuum only which makes the vacuum signal from the modern carburetors (1957 and up for the Fords) incompatible with that particular distributor.  Replacing your current LOM distributor with a Y distributor from a 1957 and up application will provide you with a distributor that incorporates both mechanical and vacuum advance capability.
By mgcookwv - 10 Years Ago
Thanks everybody for your help.
By GREENBIRD56 - 10 Years Ago
If you are looking for the cost of admission with new stuff - then take a look at these parts:
Speedway Motors - small pattern carb adapter p/n 1351935B (about $20.00 plus shipping)
Cardone - rebuilt Y-block distributor for a 292 CID 1964 F100 pickup - p/n 30-2808 (about $99.00 plus shipping) doesn't include cap
For the distributor - you might find a used part for less from one of the guys on the forum.
Then go looking for a carb ............ My favorite recommendation is the 390 cfm Holley but many will work. 
By Bjmayberry2 - 10 Years Ago
Greenbird56,
What jetting do you recommend for the 390 CFM. I'm running a 272 std bore.
By GREENBIRD56 - 10 Years Ago
I think the best answer to the jetting question ....... is to fire it up and run it. The ignition timing - float settings - any number of things will make the carb be lean or rich ....... give it a whirl with what you've got and go from there. I believe the initial "kit" of parts that comes installed on the 390 is sized for about a 300 cubic inch engine. That should work with a 272 just fine.