New carburetor recommendations ?
Thread Starter
Racer
Joined: Jul 2004
Posts: 351
Likes: 0
From: Pensacola Fl
New carburetor recommendations ?
I am looking to buy a new carburetor for my 71 vert with a base 350. I would like something that will work with very little extra tuning. I am somewhat carb-retarded. I wouldn't want to have to change anything more than just jets. I have been considering the following carbs.
Holly street avenger 670 cfm
Holley (#0-80457s) 600 cfm
Road demon 625 cfm
Edelbrock (1405 or 1406) 600 cfm
I have been leaning away from the edelbrock because of what I have found looking for their tuning kits. I don't want to buy a kit with just a few jets because I would end up buying multiple kits just to get it right. With the holley I saw that you could buy a large assortment of jets for a decent price. I thought that these same jets would work with the road demon if I understood correctly. I have an edelbrock performer manifold that this will go on. The car is just a stock driver, I am not looking for the maximum performance. I am looking for reliability and ease of installation.
Any opinions would be appreciated along with what else I would need to go with the carb (AT kickdown stuff).
Please no quadrajet comments. Thanks.
Holly street avenger 670 cfm
Holley (#0-80457s) 600 cfm
Road demon 625 cfm
Edelbrock (1405 or 1406) 600 cfm
I have been leaning away from the edelbrock because of what I have found looking for their tuning kits. I don't want to buy a kit with just a few jets because I would end up buying multiple kits just to get it right. With the holley I saw that you could buy a large assortment of jets for a decent price. I thought that these same jets would work with the road demon if I understood correctly. I have an edelbrock performer manifold that this will go on. The car is just a stock driver, I am not looking for the maximum performance. I am looking for reliability and ease of installation.
Any opinions would be appreciated along with what else I would need to go with the carb (AT kickdown stuff).
Please no quadrajet comments. Thanks.
Burning Brakes
Joined: Jul 2006
Posts: 830
Likes: 1
You're going to get 100 different reasons. But, if you want a carb which really does "just bolt on" with little or no tuning let me suggest this: I did the research last August & after speaking with both Vette shops here in Portland, they both agreed with my research:
Edelbrock, Performer 1406 600 cfm
Zora Duntov, "The best ever."
Larry Shinoda, "A'hem...My favorite is the 1980."
Edelbrock, Performer 1406 600 cfm
Zora Duntov, "The best ever."
Larry Shinoda, "A'hem...My favorite is the 1980."
Last edited by OregonVette80; Feb 15, 2007 at 01:00 PM.
Melting Slicks
Joined: Aug 2003
Posts: 2,135
Likes: 2
From: Dayton Oh
Holley 670 Street Avenger here for about 3 years and no complaints. You'll need to get a throttle cable adapter and I'd recommend the electric choke.Lars recommends increasing the jets sizes however. Since I've just installed headers I'm taking his advise. Do a Forum Search for the recommendations.
Melting Slicks
Joined: Mar 2006
Posts: 2,465
Likes: 0
From: Orange Park Fl
If you want an Edelbrock performer I'll sell you mine, it's sitting in a box in the garage (ask me why). Your stock Q-jet is the best carb for the car and will probably work perfectly as set up (rods and jets) from the factory. Rebuild the rochester, otherwise you are down grading. God bless, Sensei
Le Mans Master
Joined: Dec 2006
Posts: 8,837
Likes: 1,028
If you want an Edelbrock performer I'll sell you mine, it's sitting in a box in the garage (ask me why). Your stock Q-jet is the best carb for the car and will probably work perfectly as set up (rods and jets) from the factory. Rebuild the rochester, otherwise you are down grading. God bless, Sensei
Le Mans Master
Joined: Apr 2006
Posts: 5,403
Likes: 95
Never had anything but a holley or QJ, but of the carbs you listed
I believe I would go with the electric choke 1406 edelbrock or
the 670 holley avenger. Edelbrock has a complete calibration kit
for the 1406 part #1487 it has four different pairs of jets, five different pairs of metering rods and it looks like five different pairs of springs.
its not cheap around $35.00 for the kit.
I believe I would go with the electric choke 1406 edelbrock or
the 670 holley avenger. Edelbrock has a complete calibration kit
for the 1406 part #1487 it has four different pairs of jets, five different pairs of metering rods and it looks like five different pairs of springs.
its not cheap around $35.00 for the kit.
Instructor
Joined: Dec 2006
Posts: 246
Likes: 0
From: GA
I basically wanted the same as you, I had the stock 350. I went with the holley 80555C. It was a direct quadrajet replacement and 650cfm. I had to modify the accelerater linkage bracket but other than that I was very happy with the installation. I did no tuning except for the idle. The perfomance has been very good.
Le Mans Master
Joined: May 2006
Posts: 9,993
Likes: 1,136
From: League City Tx
Dude go with either the 600 holley or the 670 Street avenger. Those things are not going to need anything other then a possible float adjustment, setting the idle speed and idle air bleeds.
Bolt em on and forget it. Stock or basically stock 350 doesn't ask for much.
Stay away from the junk edlebrock carbs. Stick with what GM used in the first place.
I personally would go with the 670 SA.
BTW I stuck a box stock 3310 Holley 750 vac sec on a ZZ4, set the timing to 36* and the AFR was 13.0-1 with 1 5/8" headers and 2.5" exhaust. Needs no choke to start, even in winter.
Don't over think or over tune something that doesn't need it.
Bolt em on and forget it. Stock or basically stock 350 doesn't ask for much.
Stay away from the junk edlebrock carbs. Stick with what GM used in the first place.
I personally would go with the 670 SA.
BTW I stuck a box stock 3310 Holley 750 vac sec on a ZZ4, set the timing to 36* and the AFR was 13.0-1 with 1 5/8" headers and 2.5" exhaust. Needs no choke to start, even in winter.
Don't over think or over tune something that doesn't need it.
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Le Mans Master
Joined: Apr 2006
Posts: 5,403
Likes: 95
Dude go with either the 600 holley or the 670 Street avenger. Those things are not going to need anything other then a possible float adjustment, setting the idle speed and idle air bleeds.
Bolt em on and forget it. Stock or basically stock 350 doesn't ask for much.
Stay away from the junk edlebrock carbs. Stick with what GM used in the first place.
I personally would go with the 670 SA.
BTW I stuck a box stock 3310 Holley 750 vac sec on a ZZ4, set the timing to 36* and the AFR was 13.0-1 with 1 5/8" headers and 2.5" exhaust. Needs no choke to start, even in winter.
Don't over think or over tune something that doesn't need it.
Bolt em on and forget it. Stock or basically stock 350 doesn't ask for much.
Stay away from the junk edlebrock carbs. Stick with what GM used in the first place.
I personally would go with the 670 SA.
BTW I stuck a box stock 3310 Holley 750 vac sec on a ZZ4, set the timing to 36* and the AFR was 13.0-1 with 1 5/8" headers and 2.5" exhaust. Needs no choke to start, even in winter.
Don't over think or over tune something that doesn't need it.
I ever end up with a stocker type engine in something.
Drifting
Joined: Jun 2004
Posts: 1,881
Likes: 9
From: staten island ny
You're going to get 100 different reasons. But, if you want a carb which really does "just bolt on" with little or no tuning let me suggest this: I did the research last August & after speaking with both Vette shops here in Portland, they both agreed with my research:
Edelbrock, Performer 1406 600 cfm
Edelbrock, Performer 1406 600 cfm
ESU
Le Mans Master
Joined: Apr 2006
Posts: 5,403
Likes: 95
Just going to the parking lot car shows seems like I see more
Edelbrock carbs on street cars then anything else they must
have the public fooled. I like holley but I thought if I had the
chance might try an edelbrock.
Edelbrock carbs on street cars then anything else they must
have the public fooled. I like holley but I thought if I had the
chance might try an edelbrock.
Instructor
Joined: Jan 2007
Posts: 167
Likes: 0
From: Provo Utah
I had a holley 650 DP on mine for a while, ran good and pushed out about 350hp. I went away for 2 years and the car was sent in to a mechanic (without my approval) and the jerk stripped my carb and put on an Edelbrock 750 elctric choke cuz the holley was leaking (all it needed was a rebuild...$25) Anyways, the edelbrock ran fine on it, very low maintanence, car ran fine. Took it and had it dyno'd and it was only pushing out 199hp. the edelbrock cut my power by 150 horsies! I was not happy.
SO, if you are not looking for performance or power and are just gonna be cruising around and want a low maint. carb, get the edelbrock. If you want power and performance get the holley. I personally will never use an edelbrock again...period. I now have a holley 750 vac. secondary and it out performs the edelbrock hands down and runs great.
SO, if you are not looking for performance or power and are just gonna be cruising around and want a low maint. carb, get the edelbrock. If you want power and performance get the holley. I personally will never use an edelbrock again...period. I now have a holley 750 vac. secondary and it out performs the edelbrock hands down and runs great.
Pro
Joined: Aug 2001
Posts: 683
Likes: 0
From: mississauga ON
Burning Brakes
Joined: Jul 2006
Posts: 830
Likes: 1
Zora Duntov, "The best ever."
Larry Shinoda, "A'hem...My favorite was the 1973 but I've changed my mind. It is now the 1980 with an incorrect L88 hood with 427 lettering."
I was wondering when you were going to catch that!!!!
How do you know that my name isn't Zora Duntov? It could be
-Peace
Larry Shinoda, "A'hem...My favorite was the 1973 but I've changed my mind. It is now the 1980 with an incorrect L88 hood with 427 lettering."
I was wondering when you were going to catch that!!!!
How do you know that my name isn't Zora Duntov? It could be
-Peace