So here is my dilemma. My original q-jet 4-barrel is shot and in desperate need of a rebuild -- which I intend on doing, but the guy I want to fix it is backed-up and I'm looking at a long time until I get it back. I'm already going through withdrawls. So I am looking to purchase a new carb to put on while I wait for the other (plus is makes sense having an extra on hand anyhow right?). Any suggestions on a solid performance carb that would fit my specs and what they might cost?
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Re: Replacement Carb - '69 L36
Rob,
You can get a 'Rebuilt' Q-jet from Corvette Central for around $260.00. These units are rebuilt by Holley Performance Products and are supposed to be very close to the originals. New carbs--Holley makes 2 spreadbore models. The List-6210, which has mecanical secondaries and the correct linkage for your choke stove. They also have one with vacuum seconaries with electric choke, model #0-80555c. These run between $330 and $350 from Jegs, not cheap. -
Re: Replacement Carb - '69 L36
There are several places selling "Q-Jet" replacement carbs. Jet(dot com) sells 3 stages of Q-jets. The price is good through Jegs. The Edelbrocks, AVS or Performer series carbs are out standing. Order the spring/rod/jet kit for the E-brock. Q-jet parts are avilable at E-brock and Jet. Both carbs need to be dialed in properly along with your distributor curve(s) for optimum gains. Both carbs are tunable maintain "tune" well.
The retailer will need to know your original part #, application, driving habits, cam, rear gears and idle vacuum reading, to properly size it to your to your car. There are several well recommended shops that might turn over your orig carb faster than the wait you spoke of?Comment
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Re: Replacement Carb - '69 L36
Gene-
Thanks for the info. I've read some posts of people having trouble with rebuilt carbs, basically inheriting the same problems that I'm trying to correct on my original. I'm leaning toward trying something new. From what some of the experts here say, a perfectly running q-jet is the best street carb. My thoughts are to go more performance with the other. Sounds like the Holly might be the way to go...Comment
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Re: Replacement Carb - '69 L36
Dave-
I was going to hold-out for one of the highly recommended guys I found in the archive, but if you could recommend one with a faster turn-around it would be greatly appreciated. I live in So. Cal, but could obviously ship it out as well. Much thanks.
RobComment
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Re: Replacement Carb - '69 L36
The Carb Shop in Ontario, CA is reputable. Jet (dot com) is supposed to be great. I've ordered jets,rods,hangers,choke conversions etc... from them with ease. Carbs Unlimited is supposed to be good, haven't used them, yet.
If you want to super tweak it get Doug Roes book first, and then I think its Cliff Ruggles book next and one other book is supposed to be real good for Q-Jets. I have the Roe book and its real good.Comment
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Re: Holley Q-jet replacement
The Holley 6210 650 CFM and the 6211-6213 800 CFM are all great running carbs. If you plan to use them with the stock air cleaner base, the linkage for the secondary pump lever will likely rub or hit the 1" diameter tube on the bottom of the air cleaner that connects to the pass valve cover. The aftermarket(trans Dapt, Moroso, etc) bases don't sit as low and may hit the hood. You may need to get a base for the 1967 L88 (doesn't have that tube and is actually relatively cheap as a repro).
MarkComment
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Re: Holley Q-jet replacement
Have used the Holley 6210 double pumper on my 68 327/350 since about 1974, paid $60.00 for it brand new in the box. Really like having full time mechanical control of the secondaries. Modified my original air cleaner base to work, moved the tube. 68 Corvettes were not old enough for NCRS back then. Put one on my 70 Corvette about the same time. I liked it then and still now, with the Holley overnight starts did not require filling the fuel bowl after it drained overnight with the Q-Jets. Instant start, no lengthy turning over with the starter. Another thing I like about the Holley is that after sitting for some time like some of us let our Corvetts do, all I do is inject fresh fuel into the front carb vent with a syringe and the 68 and 70 start up immediately and run great.Comment
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Re: Replacement Carb - '69 L36
Thanks guys for the info. Dave, I'll look into the Carb Shop & Carbs Ultd.
Best,
RobComment
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Re: Holley Q-jet replacement
If you want strictly performance, I second Mark's Holley 6211 suggestion as I have run one.
You need an air cleaner base without the tube in the back as he says. It isn't that hard to find one.
Gas mileage is lower with the Holley. However, throttle response and top end are better, as it is an 850 cfm.
Your gas line won't match. The best bet is to remove the top section of gas line from the filter to the carb with a another you make up or one cut with a rubber hose to join.
Clearance is tight, so you need to check everything before dropping the hood.Comment
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