Holley Problem. Still Searching.
Thread Starter
Racer
Joined: Mar 2001
Posts: 327
Likes: 0
From: Southlake, Texas, USA
Holley Problem. Still Searching.
I have the carb apart and hope to put a kit in it tonight. But this is what I have found so far.
Throttle plates. Seem to be a kind of catch when you try to open both the primaries and secondaries. Loosen the screws and tried to adjust this out. Got it out in the primaries but not the secondaries. Dont seem to close completely and catch when opening. Anyone know what to do or seen this before?
Also is I remember that with 14 lbps of vacum I should have a power valve of 7, as there is now 7, I have a 7.5 is this going to work, I currently have a 6.5?
Thanks
Throttle plates. Seem to be a kind of catch when you try to open both the primaries and secondaries. Loosen the screws and tried to adjust this out. Got it out in the primaries but not the secondaries. Dont seem to close completely and catch when opening. Anyone know what to do or seen this before?
Also is I remember that with 14 lbps of vacum I should have a power valve of 7, as there is now 7, I have a 7.5 is this going to work, I currently have a 6.5?
Thanks
Drifting
Joined: Jul 1999
Posts: 1,542
Likes: 43
From: Plano TX
Re: Holley Problem. Still Searching. (SprintCarDriver)
power valve cannot be set by idle vacuum. You need a vacuum gauge that you can read while driving. Power valve should be 1 inch lower than the lowest cruise/part throttle vacuum level.
Example: If under normal driving (not wide open throttle) the lowest level is 7.5 inches of vacuum, the power valve should be 6.5. This keeps the valve from opening under normal driving, which would be too rich if it did open This will allow it to open as soon as you open the throttle beyond normal.
Example: If under normal driving (not wide open throttle) the lowest level is 7.5 inches of vacuum, the power valve should be 6.5. This keeps the valve from opening under normal driving, which would be too rich if it did open This will allow it to open as soon as you open the throttle beyond normal.
