The Ford Barn - View Single Post - Holley 4000

JerseyJim · 06-13-2011, 07:09 PM

I'm trying to sort through my Holley 4000/Loadomatic distributor issues. I had to replace the double diaphragm advance mechanism on the distributor and I had a couple issues with the Holley 4000 that Pony rebuilt for me. The choke was assembled wrong and was bound up. Sorted that out and got the choke working the way it should and it starts very easily now.

Here's my question... The carb has a bit of a stumble to it. Get on the accelerator and there's a definite hesitation. For warm weather, Ford recommends the shorter stroke on the accelerator pump. Pony assembled it with the pump linkage set up in the winter position. In the summer position, the rod would easily pop out the back. But in the winter position, another piece of linkage is in the way and has to be removed. So before I take all of the linkage apart, I figured I would ask if more of a gasoline squirt could cause the stumble? In theory, will changing it make it better or worse?

06-13-2011, 07:09 PM	#1
JerseyJim Member Join Date: Jan 2011 Location: Central Jersey Posts: 71	Holley 4000 - Advice Needed I'm trying to sort through my Holley 4000/Loadomatic distributor issues. I had to replace the double diaphragm advance mechanism on the distributor and I had a couple issues with the Holley 4000 that Pony rebuilt for me. The choke was assembled wrong and was bound up. Sorted that out and got the choke working the way it should and it starts very easily now. Here's my question... The carb has a bit of a stumble to it. Get on the accelerator and there's a definite hesitation. For warm weather, Ford recommends the shorter stroke on the accelerator pump. Pony assembled it with the pump linkage set up in the winter position. In the summer position, the rod would easily pop out the back. But in the winter position, another piece of linkage is in the way and has to be removed. So before I take all of the linkage apart, I figured I would ask if more of a gasoline squirt could cause the stumble? In theory, will changing it make it better or worse?