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stevenfromtexas · 08-02-2018, 04:55 PM

hate to keep buggin' y'all.....forgive my ignorance.

a little single barrel theory101

if i understand correctly, the "power" valve (long brass spool looking valve) pulls down with vacuum.
as you accelerate, you lose vacuum and that valve gets pushed back up with a spring.
the top of that valve then opens a check ball and allows more fuel.
my valve moves freely when i cleaned everything up yesterday

could the stumbling with a small amount of throttle be in that circuit also?
i'll prolly get a new fuel pump too per Metaldoc's recommendation.

08-02-2018, 04:55 PM	#45
stevenfromtexas Registered User Join Date: Mar 2013 Location: Hewitt, Texas Posts: 444	Re: heard this one yet???? hate to keep buggin' y'all.....forgive my ignorance. a little single barrel theory101 if i understand correctly, the "power" valve (long brass spool looking valve) pulls down with vacuum. as you accelerate, you lose vacuum and that valve gets pushed back up with a spring. the top of that valve then opens a check ball and allows more fuel. my valve moves freely when i cleaned everything up yesterday could the stumbling with a small amount of throttle be in that circuit also? i'll prolly get a new fuel pump too per Metaldoc's recommendation. __________________ Steven '67 SWB, 250ci, 3OTT.......this is my first build...... I wonder if my grand kids will say, "I would give anything to have my grand dads 2005 Chevrolet Z71"