The Ford Barn - View Single Post - Idle Screw

rotorwrench · 02-27-2019, 07:23 PM

If you have to adjust the idle up then something is sure wrong. Vacuum leak could be a factor. Some of those old manifolds can leak internally. Some of the ones in the 21 stud era were problematic that way.

02-27-2019, 07:23 PM	#21
rotorwrench Senior Member Join Date: Jun 2010 Location: San Antonio, Texas Posts: 16,420	Re: Idle Screw - Running Issue on a '33 BB If you have to adjust the idle up then something is sure wrong. Vacuum leak could be a factor. Some of those old manifolds can leak internally. Some of the ones in the 21 stud era were problematic that way.