Yes. It's pretty simple--just don't drop the little screw!

If you don't have a speed/performance shop near where you live...you can get them at any number of places on the internet. I've bought them from jegs.com in the past because they're pretty fast at getting orders out. I think a pair is about $7.

Where can one buy carburetor jets? I didn't see any at Turkey Run.

Doing Fords for 45 years. '56 Customline Victoria

E.J. in Havana FL

thanks for the replys, pcmenten was right it is a Roch.4GC.Am going to rebuild it.Ran good but it sat for 5years , was plugged up,had what looked like tan mud inside,maybe mud wasps,ordered a kit,$90.00,but I think it is a good carb,only 54 years old.wondered if anyone knows how many CFMs it is. thanks F250 RED

RED

Thanks Mark. I'll try all of that. On the cam thing there is 2 holes one marked 1 & the other 2. My screw now is in the 2 hole & 1 hole is empty. What do you do just move the 2 hole in the plastic cam to the 1 hole & put the screw in there? I'll get some of those 56 jets when I go to Turkey Run or may look at Moultrie next week when I go there. Holley will have a booth @ Turkey Run, don't know if they will at Moultrie or not.

Doing Fords for 45 years. '56 Customline Victoria

E.J. in Havana FL

There’s a myriad of items that can cause a ‘hesitation’ and several aren’t even carb related.  But on the model 4150/4160 Holley carbs, proper accelerator pump linkage adjustment is at the top of the list before going any further.  With the throttle wide open (WOT), the pump arm intersecting with the diaphram lever arm should only have ~0.015” clearance between them when the diaphram arm itself is fully depressed; or stated differently, the diaphram should be just a tad shy of being bottomed out.  After that, pump cams and accelerator pump shooters may have to be changed assuming of course that the engine itself is in good mechanical condition (no leaky valves), and vacuum leaks and retarded ignition timing have been ruled out as possibilities.

Lorena, Texas (South of Waco)

I have a 56 merc carter carb I probably wont use,its been sitting in a garage for many years and needs rebuilt.

Butchering up everything I can get my hands on in Dayton Ohio

I swapped my jets for #56 and works well.Mine is a stock 292 with the later distributor and "B" manifold with the 390 Holley.The jets that come in  these from the factory are #512 which are way too small.If you havent done anything thats a good place to start and is a good bet to solve your problem.Just re-reading my Holley catalogue.The holes in the pump cam controls how quickly the cam activates the accelerator pump.#1 activates the pump a little  "early"  using the full capacity of the pump.This setting is usually used for engines that idle at low RPM-600-700.The #2 and sometimes #3 settings delay the pump action slightly and are used in engines that idle at around 1000 RPM and higher.Try setting yours on #1 and replace the jets.Resetting the cam just requires loosening the screw and moving it and retightening the screw.Each size increase in the jets gives about 4 1/2% increase in flow and you really need to jump 2 sizes each time you change jets to notice a difference.The above info is from the Holley catalogue which gives more than just parts info. 

  

Try a little more advance - push it up to 10 degrees.

54 Victoria 312;  48 Ford Conv 302, 56 Bird 312
Forever Ford
Midland Park, NJ

Thanks guys. No I have done nothing to it at all. I have a late model distributor with a Mallory electronic unit. Timing is at 8 degrees I think. Like I said it squirts as soon as you move the linkage. Maybe I'll try those 56's. I'm going to Turkey Run, I'll go by Holly's booth. Thanks again.

Doing Fords for 45 years. '56 Customline Victoria

E.J. in Havana FL

E.J. If everything checks out you may be alittle too lean on the front jets, remember one size does not always fit all. Move the fronts jets up two numbers which should be 56s and see if that helps, it worked on my 292. The 54s are just to small on some engines and not on others?? go figure.

-Gary Burnette-