Carbking's points are very true,in my opinion,the Rochester B carb is a crude device and any other similar sized one barrel is bound to make a noticable improvement in general improvemnet.
On several of my 235's ,I threw away the Rochesters,and replaced it with a Holley 1900 from the 60's Mopar slant 6's.Not that the Holley one barrel is the best unit,but I have a few layin around.It took a little fiddling with linkage and such,but the end result was better response and fuel mileage.And the engines actually ran smoother at all speeds.
I believe Carbking says a Carter YF pretty much bolts on and offers good results.
The single Holley-Weber works ok,but Langdon himself has said the small primary throttle bore may reduce part throttle power especially on a heavier vehicle.And ya still have the suspect adapter issue.
Anyways,here's a photo of a 2300 Holley two barrel on my homemade adapter on the modified stock manifold,261 engine.Again,I used a Holley cause I have them here,any brand 2 bbl off a small 8 should be just fine.It's a clean installation,I even reworked the stock oil bath aircleaner to fit.This carb is a 300 cfm unit as found on the small IHC V-8's,I didn't change jets,the stock choke cable hooked right up.It's been great for several years,way better performance than the one barrel and more MPG's
Carb swap
