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Old 07-26-2021, 07:17 PM
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Hello Jim,

Can you clarify what emulsion tube you have, like F7 as example?
120 is not a Weber IDA emulsion tube number.
That could be your idle jet holder.
You could also solve your light throttle stumble by adding the IDA 3rd progression hole.

Gary
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Old 07-27-2021, 04:18 AM
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Quote:
Originally Posted by Gaz64 View Post
Hello Jim,

Can you clarify what emulsion tube you have, like F7 as example?
120 is not a Weber IDA emulsion tube number.
That could be your idle jet holder.
You could also solve your light throttle stumble by adding the IDA 3rd progression hole.

Gary
Gary,

I stand corrected, emulsion tube is F7, 120 is idle jet holder.

Thanks. I do not have the equipment nor the expertise to drill 3rd hole as I have reasearched that option, One really needs to be precise else you ruin a very expensive set of carbs.

Thanks,

Jim
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Old 07-27-2021, 04:56 AM
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Jim,

I would not consider myself an expert on Webers, and different engines have different needs. It looks like you are about 2 hours and 45 minutes southwest of me. Several of the guys that I know who race vintage cars with Webers went to a guy in Syracuse, NY that knows Webers and has a chassis dyno. He tuned their cars on the dyno and they all seemed happy with the results. I am planning on taking the race car there to have the Webers tuned to make sure that I am maximizing the cars potential and ensuring that I am not running lean.

My settings are much different than yours, but again, mine is a race car with a lot more aggressive cam, compression ratio and the tuning will be focused on WOT as opposed to driving it n the road. It would probably be about a 3.5-4 hour drive for you, but may be worth the time and money to get it set right. I will say that 48 IDA's are more of a race carb than the 48 IDF's, which are more street friendly.

Good luck.

Jim
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