Holley 4160 Carb Hesitation

Posted By Nat Santamaria 16 Years Ago

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Nat Santamaria	Posted 16 Years Ago
Supercharged Group: Forum Members Last Active: 3 Years Ago Posts: 165, Visits: 4.8K	Hi Guys. This winter I installed my Holley 4160 carb on my 57 T-bird. It has the Fordomatic tranny. I have Pertonix ignition, Flamethrower Coil, new wires, new plugs (gapped at .044). I took it out today for a test run. Car starts easily, once warmed up it idles quite smoothly and quietly. When pulling away from a light it stumbles. I have to let up on the gas pedal a bit to keeping it from bogging and stalling. If I work the accelerator linkage sharply (car is at idle in park), the engine stumbles before it revs up. The new 4160 carb has 8.5 power valves. Float issue? Plug gap too wide? I did not have this issue before replacing the carb. Any Ideas? Many thanks
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Holley 4160 Carb Hesitation By Nat Santamaria ( 16 Years Ago )

First thing to check is that the carb was put together tightly enough... By rgrove ( 16 Years Ago )

Personally I would go back to .035 on the plugs unless you are running... By crab ( 16 Years Ago )

I had the same problem with a 4160 years ago, and it turned out it had... By miker ( 16 Years Ago )

Exactly what ours had #55. I wonder if todays fuel requires larger... By crab ( 16 Years Ago )

[quote][b]crab (3/4/2009)[/b][hr]Exactly what ours had #55. I wonder... By crab ( 16 Years Ago )

If your letting up on the throttle to make it get better it sounds... By uncleaud ( 16 Years Ago )

Interesting, my kit also had an 8.5 PV in it, the origiinal had no... By crab ( 16 Years Ago )

Longshot, but check your vacume source for proper vacume, I think its... By crab ( 16 Years Ago )

Have you checked to make sure the base plate is tight enough?... By rgrove ( 16 Years Ago )

[quote][b]oldcarmark (3/5/2009)[/b][hr]The power valve should be rated... By Ted ( 16 Years Ago )

Hello Ted, I got the info about power valves from the Holley... By oldcarmark ( 16 Years Ago )

At first it sounded like the accelerator pump adjustment but with... By Ted ( 16 Years Ago )

Hi guys.
1957 Tbird 312, Fordomatic.
As a recall I am... By Nat Santamaria ( 16 Years Ago )

[quote][b]Nat Santamaria (3/19/2009)[/b][hr]I will have a mechanic... By Ted ( 16 Years Ago )

And from memory, the pertronix is straight battery voltage, you can't... By crab ( 16 Years Ago )