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#1 |
Registered User
Join Date: Apr 2004
Location: Calgary, Alberta,Canada
Posts: 1,595
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Need advise on air/fuel tuning on a 68 2bbl please.
I have a 1968 chevy 3/4 ton with a rebuilt 327 2bbl carb.
I was wondering how you all set the air fuel mixture screws?? Thanks.
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I know what your thinking.......I have ESPN. ![]() Sometimes it's easier to do things the hard way. ![]() Fesler Built 1968 Chevy C10....Must resist the urge to mess with it!! ![]() ![]() |
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#2 |
Its a Truck Thing......
Join Date: Dec 2004
Location: Sierra Vista, Arizona
Posts: 3,159
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Re: Need advise on air/fuel tuning on a 68 2bbl please.
I ve always ran the motor until its warm then used a vaccum/tach to set the screws, Then shut it off and see how it reacts to restarts. Then check it when its cold. But from scratch turn them in unitl they bottom then back out 2 turns.
Smitty
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71 C10 283/3SPD Full Resto 71 GMC 1500 Sierra Grande http://67-72chevytrucks.com/vboard/s...d.php?t=518599 70 C10 Suburban Former military GSA truck. 72 Chevy Blazer 4X4, Sloppy Jo, Mountain Climber. Wife says no more trucks. http://67-72chevytrucks.com/vboard/s...d.php?t=707378 72 GMC 1 Ton Motor Home, wife said no more trucks until she saw this one. Gen 3 6.0/4L80E 4.10 http://67-72chevytrucks.com/vboard/s...d.php?t=761110 68 GMC Suburban was 3/4 ton, now 1/2.Wife shook her head 71 C30 Wrecker 71 C20 Scott-Bilt As weird as it gets..BB Cheyenne AC Truck 68 GMC Long Stepside. They keep following me home 71 C20 Longhorn/Ole Yellor 69 C30 Former Motor Home, Flat Bed time Last edited by 71meangreenc10; 05-13-2006 at 03:16 PM. |
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#3 |
Registered User
Join Date: Apr 2004
Location: Calgary, Alberta,Canada
Posts: 1,595
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Re: Need advise on air/fuel tuning on a 68 2bbl please.
Thank You.
__________________
I know what your thinking.......I have ESPN. ![]() Sometimes it's easier to do things the hard way. ![]() Fesler Built 1968 Chevy C10....Must resist the urge to mess with it!! ![]() ![]() |
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#4 |
Senior Member
![]() Join Date: Mar 2000
Location: Rockville,In. USA
Posts: 3,720
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Re: Need advise on air/fuel tuning on a 68 2bbl please.
You'll find step by step instructions on using a vacuum guage to do this on the following page of our web site near the bottom of the page
http://www.gmcpauls.com/Tech%20Tips1.htm GMCPaul |
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