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Home » Public Forums » GMCnet » [GMCnet] 16.5 to 1 lean burn cruise isn't a problem with the Howell/GM system.
Re: [GMCnet] 16.5 to 1 lean burn cruise isn't a problem with the Howell/GM system. [message #324241 is a reply to message #324205] Fri, 22 September 2017 20:01 Go to previous messageGo to previous message
Kosier is currently offline  Kosier   United States
Messages: 834
Registered: February 2008
Karma:
Senior Member
Yes I do. I installed it when I installed the Cadillac. I'd heard so many
horror stories
about Cadillacs and heat that I also installed the aluminum radiator. No
problems!
I think it's important to have a heavy enough spring under the power
enrichment
piston that you get more fuel quickly when the vacuum drops. Since I'm
rather
deaf, I purchased the J & S Knock Eliminator. Maybe it really is dumb luck.

Gary Kosier
77PB w/500Cad
Newark, Ohio

--------------------------------------------------
From: "Justin Brady"
Sent: Friday, September 22, 2017 1:33 PM
To:
Subject: Re: [GMCnet] 16.5 to 1 lean burn cruise isn't a problem with the
Howell/GM system.

> Kosier wrote on Fri, 22 September 2017 11:00
>> Dick Balsley, who spent his whole career with GM, said that Gm calibrated
>> carbs for a 16.2 ratio. They liked 16.5, but production tolerances
>> kept them at 16.2. The Q-Jet on my Cadillac engine has been running at
>> that
>> figure for 10+ years. Call it "dumb luck" if you want>
>>
>> Gary Kosier
>> 77PB w/500Cad
>> Newark, Ohio
>>
>> --------------------------------------------------
>> From: "Bob Dunahugh"
>> Sent: Thursday, September 21, 2017 10:37 PM
>> To:
>> Subject: [GMCnet] 16.5 to 1 lean burn cruise isn't a problem with the
>> Howell/GM system.
>>
>>> Randy Van Winkle is extremely knowledgeable on that topic. And has
>>> data
>>> that shows it's fine with our 403, and 455. You have to remember that
>>> this
>>> system controls the ignition timing. Bob Dunahugh
>>> _______________________________________________
>>> GMCnet mailing list
>>> Unsubscribe or Change List Options:
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>>
>>
>> _______________________________________________
>> GMCnet mailing list
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>
>
> Do you have an afr gauge installed? I've never seen a carb run that lean
> Intentionally even at cruise.
> --
> Justin Brady
> http://www.thegmcrv.com/
> 1976 Palm Beach 455
>
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