Dialing in two Stromberg 97’s for the street

Dialing in two Stromberg 97’s for the street. I would like to run two 97’s on my 59Ab 3/5/16 x 3/3/4 258 Cu flathead. Can someone tell me what works? I’d like to do this just once. Any help is appreciated..

 

I'm not quite sure what your question exactly is so I will just try to explain the old set-up I had...

I was running two stock 97's that I rebuilt and a Thickstun intake on a basically stock 59A flathead. The trickiest part was getting the mixture set correctly which, imo, can only be done by making incremental changes and driving the vehicle.
And once you have your idle speed set initially you will want to get yourself a carb Synchronizer.
Basically you will disconnect the carb linkage, with the car running, and select one of the carbs as your starting point.
You then use the synch tool to tune the two carbs to one another.
The synch works on vacuum, as it sits atop a carb. Once you have the synch set to one carb you basically move it to the second carb and set that one up to match the first.
It will most likely be more than one time that you will jump back and forth from carb to carb making minor adjustments on both until you have the set-up working well.
It is a little time comsuming but it is an easy process...I'm just not doing a good job of explaining it on here. In fact I always found it be a fun little project.

 

there was a good tech done on this by Tommy...try a search i don't know where it is right off hand

 

Id say a good starting point is to bolt just the bases to the intake, and set the ****erflys totally closed. Then hook up your linkage, connecting both together. Bolt the tops on and set the idle. Then adjust as mentioned above with the air idle mixture screws.

ROB

 

Hi Mate,

Lots of good info in here:

http://www.jalopyjournal.com/forum/showthread.php?t=144213&&showall=1

http://www.jalopyjournal.com/forum/showthread.php?t=3911&highlight=multi+carb+tuning



Danny

 

From what you've said, and ***uming you are below 1000 ft above sea level, a good starting point would be .043 mains and # 67 powervalves. I go along with the previous posts, except that I find it easier to first finger tighten the mounting studs, adjust and tighten the linkage arms, and then go back and tighten the studs. That way, your linkage isn't fighting itself. 2 cents.

 

Very good point with the linkage binding. Im guessing you have some .045 jets. This is what ive seen come with most aftermarket master rebuild kits. This is a good starting point. I ve got one 2x2 flatty that I stepped up to .048 jets. Just get it running and start tweeking

ROB

 

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