The Ford Barn

Wayne Karlsrud · 06-20-2018, 11:56 AM

What tool is the best to synchronize dual Stromberg carbs on a flathead?

rockfla · 06-20-2018, 12:11 PM

A vacuum synchronizer, sits on top of the carbs and measures the air flow.....VW shops is your best source.....VW guys have been using them for years on balancing Delorto's and Solex's!!!! And Corvair 140 owners its a must!!!!

Wayne Karlsrud · 06-20-2018, 12:45 PM

Thanks....is there a brand or style that is best?

BUBBAS IGNITION · 06-20-2018, 01:54 PM

Like everything today theres the good, the bad and the ugly.......the old sync tools are made off shore and very poor quality.

This is the very best available today very accurate etc...

https://www.ebay.com/itm/Empi-Univer...MAAOSwUM5aA6m7

hotrodart · 06-20-2018, 02:24 PM

I have been using a UNISYN made in USA for many years.....has worked very well for me, including Hilborn mechanical stack injectors.

KiWinUS · 06-20-2018, 04:56 PM

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You will be amazed how close you can get it with a piece of garden hose about 2 feet long & go back & forth listening with one end on carb air horn & other at your ear. I grew up in my teens tuning twin carbs on British motorcycles & any multi carb setup on 4cyl, 6cyl, & v8s for all that had them in my home town. now have sets of "Unisync" & similar tools but still use my trusty garden hose.
Cheers
Tony

flatjack9 · 06-20-2018, 05:14 PM

I'm with Tony on this.

B-O-B · 06-20-2018, 06:01 PM

That is fine as long as you have good hearing. I am not so lucky so use a vac gauge.

06-20-2018, 11:56 AM	#1
Wayne Karlsrud Junior Member Join Date: Feb 2017 Posts: 6	question What tool is the best to synchronize dual Stromberg carbs on a flathead?

06-20-2018, 12:11 PM	#2
rockfla Senior Member Join Date: Mar 2014 Location: Jacksonville FL Posts: 3,946	Re: question A vacuum synchronizer, sits on top of the carbs and measures the air flow.....VW shops is your best source.....VW guys have been using them for years on balancing Delorto's and Solex's!!!! And Corvair 140 owners its a must!!!! Last edited by rockfla; 06-20-2018 at 12:25 PM.

06-20-2018, 12:45 PM	#3
Wayne Karlsrud Junior Member Join Date: Feb 2017 Posts: 6	Re: question Thanks....is there a brand or style that is best?

06-20-2018, 01:54 PM	#4
BUBBAS IGNITION Senior Member Join Date: May 2010 Location: SPEEDWAY INDIANA Posts: 4,148	Re: question Like everything today theres the good, the bad and the ugly.......the old sync tools are made off shore and very poor quality. This is the very best available today very accurate etc... https://www.ebay.com/itm/Empi-Univer...MAAOSwUM5aA6m7 __________________ If it Makes Spark, we do it !!!! www.bubbasignition.com [email protected]

06-20-2018, 02:24 PM	#5
hotrodart Senior Member Join Date: May 2010 Location: Shenandoah Valley Virginia Posts: 220	Re: question I have been using a UNISYN made in USA for many years.....has worked very well for me, including Hilborn mechanical stack injectors.

06-20-2018, 04:56 PM	#6
KiWinUS Senior Member Join Date: May 2010 Location: Charlotte NC KiWi-L100 available here Posts: 2,954	Re: question Sponsored Links (Register now to hide all advertisements) You will be amazed how close you can get it with a piece of garden hose about 2 feet long & go back & forth listening with one end on carb air horn & other at your ear. I grew up in my teens tuning twin carbs on British motorcycles & any multi carb setup on 4cyl, 6cyl, & v8s for all that had them in my home town. now have sets of "Unisync" & similar tools but still use my trusty garden hose. Cheers Tony

06-20-2018, 05:14 PM	#7
flatjack9 Senior Member Join Date: May 2010 Location: Oshkosh, Wi Posts: 4,526	Re: question I'm with Tony on this.

06-20-2018, 06:01 PM	#8
B-O-B Senior Member Join Date: May 2010 Location: Ft Mohave,Az Posts: 1,987	Re: question That is fine as long as you have good hearing. I am not so lucky so use a vac gauge.