11-03-2015, 11:55 AM
If anyone subscribes to Hemmings Muscle Machines there is an article in the December 2015 issue titled "Idle Work" starting on page 64.
It outlines the steps to relocate the Idle Feed Restrictors (IFR) in the metering block(s) on Holley carburetors from the bottom to the top of the idle feed passage thus creating a more responsive idle and circuit performance.
The Chevy guy across the street happen to be throwing out a Holley carb he couldn't get to run on his Corvette so asked if I could have it. After tearing it down it was pretty obvious why it didn't run on his car. The rebuild kit should be here this week so I can start putting it back together but now reading this article I would be interested in trying to relocate the IFR's on this carb.
Has anyone done this before and if so, is there any advice you could provide me before I drill and tap the metering block to relocate the IFR's?
Thank you
It outlines the steps to relocate the Idle Feed Restrictors (IFR) in the metering block(s) on Holley carburetors from the bottom to the top of the idle feed passage thus creating a more responsive idle and circuit performance.
The Chevy guy across the street happen to be throwing out a Holley carb he couldn't get to run on his Corvette so asked if I could have it. After tearing it down it was pretty obvious why it didn't run on his car. The rebuild kit should be here this week so I can start putting it back together but now reading this article I would be interested in trying to relocate the IFR's on this carb.
Has anyone done this before and if so, is there any advice you could provide me before I drill and tap the metering block to relocate the IFR's?
Thank you