CARBURETOR QUESTIONS!
Thread Starter
Intermediate
Joined: Jan 2002
Posts: 31
Likes: 0
From: DeKalb Illinois
CARBURETOR QUESTIONS!
I want to get a new Q-Jet for my Vette and I'm not sure on which one to get, Edelbrock or Jet stage 2? Edelbrock lists 750CFM and 795CFM which would be the right one for stock to mildly modified? I also want to get a performer intake. Does anyone know the CFM of the stock Rochester? Any help would be great!
Thread Starter
Intermediate
Joined: Jan 2002
Posts: 31
Likes: 0
From: DeKalb Illinois
Re: CARBURETOR QUESTIONS! (dman535)
No I dont have an aluminum intake yet but I do want the performer from edelbrock. Would that be a good mod over the stock intake? My car bogs when it gets higher in RPM's :sleep: It needs more ***** :auto:
Burning Brakes
Joined: Mar 2001
Posts: 1,211
Likes: 5
From: Nashville TN
Re: CARBURETOR QUESTIONS! (79vetteL82)
Is your car stock ? original exhaust ? cat convertor ? mufflers ? is the engine original ? I my memory serves factory 79 L-82 had an aluminum intake on it. A factory L-82 is a decent performer, I wonder if you have something in there more along the lines of an L-48 type motor.
Thread Starter
Intermediate
Joined: Jan 2002
Posts: 31
Likes: 0
From: DeKalb Illinois
Re: CARBURETOR QUESTIONS! (dman535)
I have chambered exhaust from mid-america, no cats, no mufflers. I do have an L-82 because it is a factory aluminum intake but it's factory painted.
Racer
Joined: Nov 2000
Posts: 290
Likes: 0
From: Omaha, NE
Re: CARBURETOR QUESTIONS! (79vetteL82)
I'd just rebuild it but if you are dead set on replacement, the Jet Perfomance Stage 2 should be the best performer out of the box. They will take your stock configuration and factor in any mods you have like true duals, cam gear ratio, etc. They will then set the carb up with the proper jetting and adjustments for your setup. Your original carb was a 17059211 or 17059228 Q-jet which is capable of 795 cfm. My understanding is that 350 cubic inches isn't enough displacement to utilize that much volume. Make sure your HEI is giving you all the timing advance and that the shaft/weights aren't worn out. Stock is 16 degrees mechanical advance pluse 12 degrees static on L-82 -all in by 2000rpm. Another 6 degrees makes them run much better. Good luck.
Marv-
Marv-
Melting Slicks
Joined: Feb 2000
Posts: 3,052
Likes: 0
From: Vancouver BC, Canada
Re: CARBURETOR QUESTIONS! (79vetteL82)
No I dont have an aluminum intake yet but I do want the performer from edelbrock. Would that be a good mod over the stock intake? My car bogs when it gets higher in RPM's :sleep: It needs more ***** :auto:
First step is to get your current carb tuned properly by checking the A/F ratio, and adjusting the secondary opening rates and float height.
[Modified by Turbo-Jet, 10:18 PM 2/16/2003]
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