Best Carb for 350 Vortec?
05-02-2014, 10:43 AM
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Car: 1991 Camaro RS
Engine: Built TBI 350
Transmission: T-5
Axle/Gears: 3.42 Posi
Best Carb for 350 Vortec?
I'm probably going to build a 350 with vortec heads, eldebrock air gap intake, and a nice roller cam. What would be the best carb? Keep in mind this is my daily driver. And I hope to get at least decent mileage with it. My budget for a carb is around $400..
05-02-2014, 10:53 AM
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Car: 1983 Z28
Engine: 385 Fastburn
Transmission: T-5
Axle/Gears: BorgWarner 9-bolt posi, 3.27 gears
Re: Best Carb for 350 Vortec?
If you aren't doing anything crazy then I'd imagine that a 600 or 650 holley would do you just fine.
05-02-2014, 10:59 AM
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Car: 1991 Camaro RS
Engine: Built TBI 350
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Axle/Gears: 3.42 Posi
05-02-2014, 11:06 AM
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Car: 1991 Camaro RS
Engine: Built TBI 350
Transmission: T-5
Axle/Gears: 3.42 Posi
Re: Best Carb for 350 Vortec?
What mpg would I expect to get? I would like to think 13-14. I usually do city driving and I like to give at little gas here and there 
05-02-2014, 11:19 AM
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Car: 1983 Z28
Engine: 385 Fastburn
Transmission: T-5
Axle/Gears: BorgWarner 9-bolt posi, 3.27 gears
Re: Best Carb for 350 Vortec?
Yeah, I think that'd be fair estimate, it all depends on how you tune it and how you drive it lol
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05-02-2014, 12:09 PM
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Car: 1991 Camaro RS
Engine: Built TBI 350
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Axle/Gears: 3.42 Posi
05-02-2014, 12:22 PM
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Car: 85 SC, 86 Berlinetta
Engine: V6, V8
Transmission: 700r4, 700r4
Re: Best Carb for 350 Vortec?
I was throwing the idea of trying a Q-Jet because the primaries are smaller but you need a spread bore intake for that. Even then for me it's really hard to stay out of the throttle anyways. lol
Otherwise yes, a 650 Holley.
The gearing will make a difference in gas mileage as well.
Otherwise yes, a 650 Holley.
The gearing will make a difference in gas mileage as well.
05-02-2014, 12:41 PM
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Car: 1991 Camaro RS
Engine: Built TBI 350
Transmission: T-5
Axle/Gears: 3.42 Posi
Re: Best Carb for 350 Vortec?
I was throwing the idea of trying a Q-Jet because the primaries are smaller but you need a spread bore intake for that. Even then for me it's really hard to stay out of the throttle anyways. lol
Otherwise yes, a 650 Holley.
The gearing will make a difference in gas mileage as well.
Otherwise yes, a 650 Holley.
The gearing will make a difference in gas mileage as well.
05-02-2014, 01:03 PM
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Car: 89 Firebird
Engine: 355 TBI
Transmission: 700R4
Axle/Gears: 10 Bolt.Posi-3.73s
Re: Best Carb for 350 Vortec?
I had the 650 holley doublepumper on a very similiar engine. It was GREAT. The throttle response was night and day in comparison to an edelbrock i had ran. Try to run non-ethanol gas if you can though
05-02-2014, 01:03 PM
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05-02-2014, 01:10 PM
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Car: 1991 Camaro RS
Engine: Built TBI 350
Transmission: T-5
Axle/Gears: 3.42 Posi
Re: Best Carb for 350 Vortec?
What kind of mileage did you get??
05-02-2014, 01:11 PM
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Car: 1991 Camaro RS
Engine: Built TBI 350
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Axle/Gears: 3.42 Posi
05-02-2014, 01:12 PM
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Car: 85 SC, 86 Berlinetta
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Re: Best Carb for 350 Vortec?
Edelbrock is ok too. It gets down to a personal choice sometimes. I like Holley double pumpers even if a vacuum secondary will do. Quadrajets are next and then Edelbrock for me. The next guy will probably say something completely different and some of it has to do with what people are used to as well as how well they can tune one or the other.
I'm not sure how the T-5 is geared but the rear is such that you might be into the throttle more than say a 3.73. If you have an engine with good torque and low gears you won't be into the throttle as much. That may help you stay out of the secondaries more than say less torque and higher gears. Higher gears will keep the rpm down while on the highway and that can depend on what speed you like to cruise at.
A vac secondary with a choke may be more suited to a daily driver. If you google you'll find more info on the differences. These will explain better than I can. (I'm not a mechanic or anything btw.)
http://67-72chevytrucks.com/vboard/s...d.php?t=498461
http://www.chevelles.com/forums/showthread.php?t=22333
I'm not sure how the T-5 is geared but the rear is such that you might be into the throttle more than say a 3.73. If you have an engine with good torque and low gears you won't be into the throttle as much. That may help you stay out of the secondaries more than say less torque and higher gears. Higher gears will keep the rpm down while on the highway and that can depend on what speed you like to cruise at.
A vac secondary with a choke may be more suited to a daily driver. If you google you'll find more info on the differences. These will explain better than I can. (I'm not a mechanic or anything btw.)
http://67-72chevytrucks.com/vboard/s...d.php?t=498461
http://www.chevelles.com/forums/showthread.php?t=22333
05-02-2014, 01:20 PM
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05-02-2014, 01:25 PM
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Car: 1991 Camaro RS
Engine: Built TBI 350
Transmission: T-5
Axle/Gears: 3.42 Posi
Re: Best Carb for 350 Vortec?
What did you do with your motor? You have vortec heads and a 650 Holley. What kind of cam do you have?
05-02-2014, 01:42 PM
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Re: Best Carb for 350 Vortec?
Generally I never get going faster than 45mph around town.
355
Patriot 185CC Vortec heads with 2.02 valves
Edelbrock 1405 600cfm carb
T5
3.73 Rear
XE274 cam
10:1 compression
05-02-2014, 01:55 PM
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Car: 1991 Camaro RS
Engine: Built TBI 350
Transmission: T-5
Axle/Gears: 3.42 Posi
Re: Best Carb for 350 Vortec?
That sounds like something I'm probably going to do... You like the setup?
05-02-2014, 02:21 PM
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05-02-2014, 02:56 PM
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Car: 1991 Camaro RS
Engine: Built TBI 350
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Axle/Gears: 3.42 Posi
05-02-2014, 03:18 PM
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05-02-2014, 04:32 PM
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Re: Best Carb for 350 Vortec?
Holley 6210 (650 CFM man sec dbl-pump spreadbore)
Best carb ever made for a street 350
Best carb ever made for a street 350
05-02-2014, 06:23 PM
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Car: 1991 Camaro RS
Engine: Built TBI 350
Transmission: T-5
Axle/Gears: 3.42 Posi
05-04-2014, 10:50 PM
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Car: 1986 camaro Sports Coupe
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Re: Best Carb for 350 Vortec?
On my vortex I run a carter AFB 600 vacuum secondarys. No issues and great response.
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