Carbs and Pictures
Thread Starter
Instructor
Joined: May 2002
Posts: 121
Likes: 0
From: Outside Houston Texas
Carbs and Pictures
I'm trying out the pictures I uploaded today. If they show, one of them is me and my Dad trying to get the darned door handles removed. :lol: The other one is the slightly sad looking 65, the bumper is still bent from my encounter with a school bus- nobody told me they changed the bus lane to one way. :eek:
Also, I'll check the archives if this is a newbie question, but the quadrajet has finally bitten the dust. After two rebuilds it's just not working right. My question is if anyone has any recommendations on the best carb for a daily driver, 350 engine. I was kind of looking at Holley 600-700s but don't know enough to pick the right one. I don't want to ask Dad or the mechanic because they'll drag up goodness knows what, or take something off another car. Of course I'd still like a little pep. Thanks all, I really enjoy this forum.
[Modified by StingRayPonyGirl, 10:55 PM 5/31/2002]
Also, I'll check the archives if this is a newbie question, but the quadrajet has finally bitten the dust. After two rebuilds it's just not working right. My question is if anyone has any recommendations on the best carb for a daily driver, 350 engine. I was kind of looking at Holley 600-700s but don't know enough to pick the right one. I don't want to ask Dad or the mechanic because they'll drag up goodness knows what, or take something off another car. Of course I'd still like a little pep. Thanks all, I really enjoy this forum.
[Modified by StingRayPonyGirl, 10:55 PM 5/31/2002]
Senior Member since 1492
Joined: Aug 2000
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From: Just because I'm paranoid doesn't mean people aren't out to get me...
St. Jude Donor '09
Re: Carbs and Pictures (StingRayPonyGirl)
Wow! You guys certainly are a Vette family and that door handle can be a PIA. I think the best person to do a door handle switch would be a dwarf midget, contortionist! :lol:
I'm bringing this to the top for more input. I can't recommend a carb, BUT I've had a Holley #3310 750 vac sec, but manual choke that I've been running about a year now & liked. My '70 isn't a daily driver so an elec choke didn't matter. I then added a Proform main body and the choke and choke tower are now gone! :eek:
Oh, and welcome!
I'm bringing this to the top for more input. I can't recommend a carb, BUT I've had a Holley #3310 750 vac sec, but manual choke that I've been running about a year now & liked. My '70 isn't a daily driver so an elec choke didn't matter. I then added a Proform main body and the choke and choke tower are now gone! :eek:
Oh, and welcome!
Safety Car
Joined: Apr 2002
Posts: 4,653
Likes: 6
From: North Royalton, OH
St. Jude Donor '06-'07
Re: Carbs and Pictures (StingRayPonyGirl)
I'm no carb expert, but I do understand that you will get the best mileage from a carb with vacuum secondaries. I am running a Holley 750 with mechanical secondaries, and can attest to that...! I've had good luck running a 750. When tuned right, it's not too big, not too small - just right! I know a lot on the Forum are running Edelbrocks for their ease of tuning and good performance. I have to admit the Holley is a PITA sometimes for tuning. Hope my little input helps you along your way! I think you'll find a lot of threads regarding carbs and you'll find the right one for you.
Le Mans Master
Joined: Apr 1999
Posts: 6,134
Likes: 46
From: Raleigh North Carolina
Re: Carbs and Pictures (BSiegPaint)
Heads up....
If you change to a Holley, you also have to change the intake manifold unless you buy a "spreadbore Holley". The mounting pattern is different for a Q-jet (spreadbore) vs a standard Holley (square bore).
If you change to a Holley, you also have to change the intake manifold unless you buy a "spreadbore Holley". The mounting pattern is different for a Q-jet (spreadbore) vs a standard Holley (square bore).
Thread Starter
Instructor
Joined: May 2002
Posts: 121
Likes: 0
From: Outside Houston Texas
Re: Carbs and Pictures (Tom454)
Heads up....
If you change to a Holley, you also have to change the intake manifold unless you buy a "spreadbore Holley". The mounting pattern is different for a Q-jet (spreadbore) vs a standard Holley (square bore).
If you change to a Holley, you also have to change the intake manifold unless you buy a "spreadbore Holley". The mounting pattern is different for a Q-jet (spreadbore) vs a standard Holley (square bore).
Le Mans Master
Joined: Nov 2000
Posts: 5,210
Likes: 104
From: Fort Worth TX
St. Jude Donor '06
Father & Son St. Jude Donor '09
Re: Carbs and Pictures (StingRayPonyGirl)
Thanks for the photos! But ya gotta get a photo with all of the owners next to each of their Vettes. My family has only had three. Dad and I shared on, 73 L48 TT and we got my brother hooked and he bought a 78 I think it was an L82. Now I have the 74 vert. Next on the list is a C2 vert., just don't tell my wife I'm thinking about a future addition already. I keep pushing the C5 driver as well. :D And I'm not sure there's such a thing as a sad looking 65. :lol:
As for the carb, search the archives and you'll find a wealth of knowledge. This forum certainly rocks! We've met several members off the fourm and have already had two small BBQ's . . . More to come.
[Modified by 74-Roadster, 9:34 AM 6/1/2002]
As for the carb, search the archives and you'll find a wealth of knowledge. This forum certainly rocks! We've met several members off the fourm and have already had two small BBQ's . . . More to come.
[Modified by 74-Roadster, 9:34 AM 6/1/2002]
Race Director
Joined: Apr 1999
Posts: 11,520
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From: CORVETTE 77 385 C.I. TEXAS
Re: Carbs and Pictures (StingRayPonyGirl)
You are on target w/ your cfm. 600 is all that's needed for mild 350 & gas mileage. Spreadbore can be more like 650-750 & still get mileage. All above can give good power on stock/mild 350.
:cool:
:cool:
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Drifting
Joined: Jun 2000
Posts: 1,955
Likes: 2
Re: Carbs and Pictures (StingRayPonyGirl)
It's hard to beat a well-tuned QuadraJet for a daily driver. They have nice small primaries, so gas mileage and low RPM response is nice, but have big secondaries, so they'll scoot on command. Also fits up to stock manifold. The problem is that they are a little tough to get dialed in unless you have some experience, or alot of patience to learn. I assume you have the stock QJet? Consider a performance rebuild of the original. Have also heard good things about the Edelbrock replacement QJets, but haven't tried one myself. I run the original QJets on my daily driver '76 Suburban (454, Comp 256XE cam, Edelbrock intake, headers) and hot-rod '74 Corvette (350, Comp 268H, intake, headers).
The Edelbrock Performer intake has the bolt patterns for either square bore (Holley, edelbrock) or spread bore (QJet) carbs, FYI.
Let us know what you decide!
Jeff
PS Welcome to the board, good to see another southeast Texan!
The Edelbrock Performer intake has the bolt patterns for either square bore (Holley, edelbrock) or spread bore (QJet) carbs, FYI.
Let us know what you decide!
Jeff
PS Welcome to the board, good to see another southeast Texan!
Thread Starter
Instructor
Joined: May 2002
Posts: 121
Likes: 0
From: Outside Houston Texas
Re: Carbs and Pictures (no_radio)
Consider a performance rebuild of the original.
PS Welcome to the board, good to see another southeast Texan!
PS Welcome to the board, good to see another southeast Texan!
Patience is running thin at this point, it's been about ten years from total frame off to this and I'm still not satisfied. Looks like you're about 80 or 90 miles from me :cool: Maybe you can make the Silsbee Cruise this month, it's supposed to be pretty big.
Race Director
Joined: Jun 2000
Posts: 10,046
Likes: 675
From: FL
Re: Carbs and Pictures (StingRayPonyGirl)
If you want to become Q-jet smart, get the following:
1) Book Rochester Carburetors by Doug Roe (try Amazon)
2) Lars' Q-Jet tech papers from http://www.corvettefaq.com (engine section)
3) Rebuild kit from NAPA.
The book shows how to do a rebuild step by step with pictures. Lars papers talk about how to tune the carb for max performance. The knowledge you gain from doing the rebuild yourself will pay dividends if you ever want to tweak it later. Total investment would be about $40 (20 for the book and 20 for the kit).
My rebuild took me about 2 hours but it was actually a lot of fun. :smash:
1) Book Rochester Carburetors by Doug Roe (try Amazon)
2) Lars' Q-Jet tech papers from http://www.corvettefaq.com (engine section)
3) Rebuild kit from NAPA.
The book shows how to do a rebuild step by step with pictures. Lars papers talk about how to tune the carb for max performance. The knowledge you gain from doing the rebuild yourself will pay dividends if you ever want to tweak it later. Total investment would be about $40 (20 for the book and 20 for the kit).
My rebuild took me about 2 hours but it was actually a lot of fun. :smash: