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08-13-2010, 12:23 AM
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#1 |
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Registered User
Join Date: Jul 2007
Location: Salina, Kansas
Posts: 1,998
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Re: Truck stumbles when floored
what did u gap your plugs to? i assume that one u just dropped in was hei.. did u gap them to .045? because with points i gapped mine to .035 and then with hei i gapped them to .045
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1972 C-10...402/400..flowmaster 40 series 1967 Mustang 347 stroker/C-4 1966 Mustang 289/3-speed 2013 Mustang V6/6speed w/300 ponies I may be 23, but i sure do knows 67-72s are sexy! Its not MPG its smiles per gallon! build started 11/25/08 build thread: http://67-72chevytrucks.com/vboard/s....php?p=2993796 |
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08-13-2010, 02:04 AM
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#2 | |
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Registered User
Join Date: Aug 2009
Location: Tomball, TX
Posts: 578
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Re: Truck stumbles when floored
Quote:
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'68 C10 LWB 6.2NA/NP833 3.73's |
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08-13-2010, 03:59 AM
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#3 |
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lovin' the lowcountry
Join Date: Apr 2010
Location: Moncks Corner, SC
Posts: 138
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Re: Truck stumbles when floored
On my Q-jet, the filter is where the fuel line enters the carb on the front. Good luck!
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Chris 29461 72 SWB stepside  71 SWB stepside DRIVE IT LIKE YOU STOLE IT! |
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08-13-2010, 11:45 AM
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#4 | |
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Registered User
Join Date: Aug 2009
Location: Tomball, TX
Posts: 578
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Re: Truck stumbles when floored
Quote:
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'68 C10 LWB 6.2NA/NP833 3.73's |
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08-13-2010, 12:25 PM
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#5 |
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Registered User
Join Date: Jun 2009
Location: Arlington Texas
Posts: 602
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Re: Truck stumbles when floored
Ok as fas as my carb goes, maybe this will help you out.
White circle is where the filter is. Red circle over the vaccum tube is plugged on mine. The yellow circle vaccum line goes to the choke. Green circle: in this are is a vaccum tube that needs to be connected to the vacuum advance. also I have a tee from that tube to one under the choke that goes to the distributor advance. Next is the clamps on your fuel filters, these have a tendancy to fail after some time and leak. Might consider changing to some screw drive clamps. Now that is how mine is done. Mine could be wrong but it runs good this way.
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1970 GMC truck  1988 Harley 1200 Sportster 
Last edited by kevmic28; 08-13-2010 at 12:30 PM. |
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08-13-2010, 02:01 PM
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#6 |
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Registered User
Join Date: Aug 2009
Location: Tomball, TX
Posts: 578
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Re: Truck stumbles when floored
Wow thanks guys, yall are awesome! The vacuum advance is on the dizzy right? I was thinking that but you mentioned distributor advance, so I'm not sure.
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'68 C10 LWB 6.2NA/NP833 3.73's |
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08-13-2010, 03:15 PM
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#7 |
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Senior Member
Join Date: Jul 2004
Location: Sweden
Posts: 833
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Re: Truck stumbles when floored
I had the same problem, it turned out to be a secondarie metering rod that had slipped off the rod hanger and plugged one of the secondarie jets.
See this thread: http://67-72chevytrucks.com/vboard/s...d.php?t=155657
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Mats.. ---------------------------------------------------- 1971 Cheyenne Super Custom Camper 475CBB/TH400/AC 1992 Silverado Sport Truck 1988 Silverado 2500 Ext Longbed 4x4 2001 GMC Sierra SLT 4x4 1990 Chevrolet K3500 1965 Pontiac Grand Prix 1980 Z 28 350/4-speed/AC/T-top 1980 Camaro Coupe V6/3-speed 1979 Buick Century Wagon |
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