How do I change from 4bbl to 2bbl carb on 1969 Ford F100?

The truck was originally 2bbl carb. Somebody changed intake and put 4bbl Holly on truck. Want to change back to just a standard Ford 2bbl carb. What all do I need to do so?



Vehicle is manual choke vehicle. 302 ci. Ford F100 Ranger.How do I change from 4bbl to 2bbl carb on 1969 Ford F100?Two ways.



You could use a 2 barrel carburetor adapter plate on your current intake manifold.



You could replace the 4 barrel intake manifold with a 2 barrel manifold.



If setup correctly, the 4 barrel will get the same or better fuel mileage, as long as you use a light touch on the throttle. This is because the engine is normally running on the primary barrels, these are usually smaller then the barrels used on a 2 barrel carburetor. The secondaries (all 4 barrels) are not opened until the engine is placed under a load (heavy foot on the throttle). The secondaries are operated by engine vacuum and only open as much and as long as the engine demand requires.How do I change from 4bbl to 2bbl carb on 1969 Ford F100?
if you want to change it back from 4 barrell to a 2 barrell, you will have to drain the radiator and change the intake to a 2 barrell intake or get an adapter from a 4 barrell to a 2 barrell.How do I change from 4bbl to 2bbl carb on 1969 Ford F100?You'll have to buy a 2bbl carb and manifold. Then you'll have to change manifolds and carbs and readjust the linkage. probably.How do I change from 4bbl to 2bbl carb on 1969 Ford F100?
you need a 2 barrel intake, a 2 barrel carburetor and intake and carburetor gaskets and whatever linkage might be necessary and tools/manual.How do I change from 4bbl to 2bbl carb on 1969 Ford F100?You can buy an adapter plate. Much easier than changing the manifold.



禄禄禄How do I change from 4bbl to 2bbl carb on 1969 Ford F100?
You would need to oreder a 2barrel intake manifold then put the 2 barrel carb on top of that.
I think you're going to be surprised how little your fuel mileage changes. You won't even notice it.