Anyone around Austin, Texas...... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

trapperjack · 08-15-2011, 09:00 PM

.....want to help me re-jet a quadra-jet? Runs great, but is running rich, and I believe the carb is from a 454. It now sits on a 350. I'll provide Shiner, or beverage of choice, and some carne of some sort on the grill. I've worked on 1 carb, and promptly caught it on fire. I'm North of Austin about 30 miles, and East of Georgetown about the same. If there are enough people (or any) who want to play, we could make a wrenching session out of it.
Thanks.

Lee H · 08-15-2011, 10:31 PM

You need to check what it's jetted and rodded at now. If you need to change it you need to match the jets and rods on the way down. You can't just change the jet or rod and have it work correctly. If that q-jet has the stock jets and rods it should be fine as is. If you post the number I might be able to find what it started out life as and what jets and rods are stock.
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trapperjack · 08-16-2011, 12:01 AM

I'll find the numbers for you tomorrow evening. Thanks. It runs great. good response, no hesitation, lots of power. Just smells rich.
Thanks.

eldogg · 08-16-2011, 09:29 AM

Check your timing. If the carb runs good thats where I would start. Good luck.

OhOneWS6 · 08-16-2011, 09:57 AM

What makes you think it is running rich?

Lee H · 08-16-2011, 11:21 AM

Quote:

Originally Posted by trapperjack

It runs great. good response, no hesitation, lots of power. Just smells rich.
Thanks.

If it's not broken, don't fix it. There's a lot of people out there that pray for this in a q-jet. What kind of mileage are you getting?
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trapperjack · 08-16-2011, 04:55 PM

I haven't got it back on the road yet. Was wrecked by PO. Side swiped. i have a thread in the 4x4 section. i'm ready to tag and inspect it, just don't want to be dumping more gas than it can use. I'll try to get the numbers off the carb if i'm home tonight.

Flint70step · 08-16-2011, 05:14 PM

Hello there neighbor,I live just outside of Austin on beautiful Lake Travis.I have a little carb experience and I'm confident we can change jetting to help you run better.I have a great deal of experience with putting down some Shiners and grillin carne.Sending a pm with my number,give me a call and I'll do my best to help

kevmic28 · 08-16-2011, 06:34 PM

If your smelling a little gas I would bet its more likely to be heat soak with the Texas heat than running rich.

tonypaul · 08-16-2011, 07:54 PM

I have a freshly rebuilt quadrajet sitting in my garage that has the same thing- runs, idles, starts all good- but ran rich on the small block that it was on. I tried 3 differnt needles, I got it to were it wasnt running rich but it ran worse. I just took the carb and factory aluminum intake off and replaced it with a Holley 670 and a cheap ebay polished Pro Comp intake. Now after a little tweeking on the Holley it runs great!

**70cst** · 08-16-2011, 10:28 PM

Quote:

Originally Posted by Flint70step

Hello there neighbor,I live just outside of Austin on beautiful Lake Travis.I have a little carb experience and I'm confident we can change jetting to help you run better.I have a great deal of experience with putting down some Shiners and grillin carne.Sending a pm with my number,give me a call and I'll do my best to help

There you go...looks like the beginning of a carb party

trapperjack · 08-17-2011, 06:47 PM

Quote:

Originally Posted by Flint70step

Hello there neighbor,I live just outside of Austin on beautiful Lake Travis.I have a little carb experience and I'm confident we can change jetting to help you run better.I have a great deal of experience with putting down some Shiners and grillin carne.Sending a pm with my number,give me a call and I'll do my best to help

Sounds great. I'll be calling you, thanks.

trapperjack · 08-17-2011, 06:50 PM

Numbers on the carb....
17059520
2798 ccp

This is a 67 K20, but engine is a 75 350 from a suburban.
Thanks, all.

08-15-2011, 09:00 PM	#1
trapperjack Registered User Join Date: Nov 2006 Location: The Republic of Texas Posts: 361	Anyone around Austin, Texas...... .....want to help me re-jet a quadra-jet? Runs great, but is running rich, and I believe the carb is from a 454. It now sits on a 350. I'll provide Shiner, or beverage of choice, and some carne of some sort on the grill. I've worked on 1 carb, and promptly caught it on fire. I'm North of Austin about 30 miles, and East of Georgetown about the same. If there are enough people (or any) who want to play, we could make a wrenching session out of it. Thanks. __________________ 1962 Chevy K10 factory 4x4 stepside longbed http://67-72chevytrucks.com/vboard/s...d.php?t=494632 1967 Chevy 3/4 ton 4x4 long bed (Henrietta) traded 1968 Chevy 1/2 ton panel wagon, V8 and powerglide http://67-72chevytrucks.com/vboard/s...d.php?t=483345 1978 Ford F250, beater stepside 2008 Jeep Wrangler 4 Door 2010 Chevy 4x4 plain jane work truck

08-15-2011, 10:31 PM	#2
Lee H Registered User Join Date: Jun 2010 Location: Upland Ca Posts: 4,147	Re: Anyone around Austin, Texas...... You need to check what it's jetted and rodded at now. If you need to change it you need to match the jets and rods on the way down. You can't just change the jet or rod and have it work correctly. If that q-jet has the stock jets and rods it should be fine as is. If you post the number I might be able to find what it started out life as and what jets and rods are stock. Posted via Mobile Device __________________ 1972 C10 SWB, Air, PS, PB, 350/350THM. Second owner. 1965 Corvette roadster, 44K miles, 327/365 SHP, 4 speed, side exhaust, knockoffs, teak, second owner (bought in 1970), Have ALL numbers matching components. My frame off restoration thread: http://67-72chevytrucks.com/vboard/s...d.php?t=556703

08-16-2011, 12:01 AM	#3
trapperjack Registered User Join Date: Nov 2006 Location: The Republic of Texas Posts: 361	Re: Anyone around Austin, Texas...... I'll find the numbers for you tomorrow evening. Thanks. It runs great. good response, no hesitation, lots of power. Just smells rich. Thanks. __________________ 1962 Chevy K10 factory 4x4 stepside longbed http://67-72chevytrucks.com/vboard/s...d.php?t=494632 1967 Chevy 3/4 ton 4x4 long bed (Henrietta) traded 1968 Chevy 1/2 ton panel wagon, V8 and powerglide http://67-72chevytrucks.com/vboard/s...d.php?t=483345 1978 Ford F250, beater stepside 2008 Jeep Wrangler 4 Door 2010 Chevy 4x4 plain jane work truck

08-16-2011, 09:29 AM	#4
eldogg Registered User Join Date: May 2007 Location: Mooresville NC/Gainesville GA Posts: 499	Re: Anyone around Austin, Texas...... Check your timing. If the carb runs good thats where I would start. Good luck. __________________ Eric Evans Queen City Shop Truck http://67-72chevytrucks.com/vboard/s...34#post6139834 66 GMC http://67-72chevytrucks.com/vboard/s...d.php?t=543110

08-16-2011, 09:57 AM	#5
OhOneWS6 Registered User Join Date: Dec 2009 Location: DFW, TX Posts: 764	Re: Anyone around Austin, Texas...... What makes you think it is running rich? __________________ 72 Cheyenne Super 1/2 LWB White/Dark Yellow 07 Avalanche 2LT 74 Sleek Craft Rebel Jet Boat W/Pontiac 400

08-16-2011, 04:55 PM	#7
trapperjack Registered User Join Date: Nov 2006 Location: The Republic of Texas Posts: 361	Re: Anyone around Austin, Texas...... I haven't got it back on the road yet. Was wrecked by PO. Side swiped. i have a thread in the 4x4 section. i'm ready to tag and inspect it, just don't want to be dumping more gas than it can use. I'll try to get the numbers off the carb if i'm home tonight. __________________ 1962 Chevy K10 factory 4x4 stepside longbed http://67-72chevytrucks.com/vboard/s...d.php?t=494632 1967 Chevy 3/4 ton 4x4 long bed (Henrietta) traded 1968 Chevy 1/2 ton panel wagon, V8 and powerglide http://67-72chevytrucks.com/vboard/s...d.php?t=483345 1978 Ford F250, beater stepside 2008 Jeep Wrangler 4 Door 2010 Chevy 4x4 plain jane work truck

08-16-2011, 05:14 PM	#8
Flint70step Registered User Join Date: Jan 2011 Location: Lake Travis,Texas Posts: 586	Re: Anyone around Austin, Texas...... Hello there neighbor,I live just outside of Austin on beautiful Lake Travis.I have a little carb experience and I'm confident we can change jetting to help you run better.I have a great deal of experience with putting down some Shiners and grillin carne.Sending a pm with my number,give me a call and I'll do my best to help __________________ 72 Cheyenne Super LWB 350/350 Factory A/C Tilt/Posi White/Med Red/White(on the way) 72 Custom Deluxe Burb(Arizona truck)Nice interior Great patina Project Patina Azul http://67-72chevytrucks.com/vboard/s...d.php?t=467668

08-16-2011, 06:34 PM	#9
kevmic28 Registered User Join Date: Jun 2009 Location: Arlington Texas Posts: 602	Re: Anyone around Austin, Texas...... If your smelling a little gas I would bet its more likely to be heat soak with the Texas heat than running rich. __________________ 1970 GMC truck 1988 Harley 1200 Sportster

08-16-2011, 07:54 PM	#10
tonypaul Registered User Join Date: Nov 2009 Location: Austin Tx Posts: 639	Re: Anyone around Austin, Texas...... I have a freshly rebuilt quadrajet sitting in my garage that has the same thing- runs, idles, starts all good- but ran rich on the small block that it was on. I tried 3 differnt needles, I got it to were it wasnt running rich but it ran worse. I just took the carb and factory aluminum intake off and replaced it with a Holley 670 and a cheap ebay polished Pro Comp intake. Now after a little tweeking on the Holley it runs great!

08-17-2011, 06:50 PM	#13
trapperjack Registered User Join Date: Nov 2006 Location: The Republic of Texas Posts: 361	Re: Anyone around Austin, Texas...... Numbers on the carb.... 17059520 2798 ccp This is a 67 K20, but engine is a 75 350 from a suburban. Thanks, all. __________________ 1962 Chevy K10 factory 4x4 stepside longbed http://67-72chevytrucks.com/vboard/s...d.php?t=494632 1967 Chevy 3/4 ton 4x4 long bed (Henrietta) traded 1968 Chevy 1/2 ton panel wagon, V8 and powerglide http://67-72chevytrucks.com/vboard/s...d.php?t=483345 1978 Ford F250, beater stepside 2008 Jeep Wrangler 4 Door 2010 Chevy 4x4 plain jane work truck



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