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View Full Version : need carb suggestion


ahopkins321
03-26-2010, 12:16:42 PM
I'm in need of suggestions on what carb to get. Here's what I'm running:

350 Voodoo cam 468, Weiand Intake, I currently have the 750 qjet on there.

Would an edlebrock performer 750 be too much?

Also I don't know much about carbs so which is also the easiest to install/ tune?

ahopkins321
03-26-2010, 09:07:23 PM
No one has a suggestion?

Cardinal
03-26-2010, 09:30:49 PM
Why do you want to replace the Q-jet? It is THEE simplest carburetor for a novice as it requires VERY little maintenance other than changing the fuel filter.n It is also the best of both worlds: economy when you keep your foot out of the secondaries, and a powerhouse when you do floor it.

As for a replacement carbueter, we need to know the model number of the intake you have so that we can tell you what style base plate carbureter will match the intake. EX: if the intake has a "square" bore pattern (where all four corners of the intake where that carbureter bolts onto) then a Edelbrock Performer carbureter is the correct one. IF however, the intake is wider/bigger in the back half when compared to the front half, then a Q-jet replacement carburetor is what you should replace it with although a Holley Spreadbore will go on there too BUT I ADVISE AGAINST USING IT AS THEY ARE HORRIBLE CARBURETERS FOR THE STREET and IMHO are a waste of good money.

ahopkins321
03-26-2010, 09:33:59 PM
So just find someone that can rebuild my qjet would work?

1980RS
03-27-2010, 12:36:54 AM
I'm in need of suggestions on what carb to get. Here's what I'm running:

350 Voodoo cam 468, Weiand Intake, I currently have the 750 qjet on there.

Would an edlebrock performer 750 be too much?

Also I don't know much about carbs so which is also the easiest to install/ tune?

I would get the holley avenger 750

Cardinal
03-27-2010, 12:59:52 AM
Yes, find someone to rebuild the Q-jet or buy a new one from Summit or Jegs. http://www.summitracing.com/search/Part-Type/Carburetors/?keyword=q-jet

BEFORE you attempt to rebuild it, check to see if the trottle shafts are loose in the base plate. With the engine off, open the trottle a little then rock the shaft around in its hole through the base plate. If it isn't tight, it's junk.

The Q-jet is easy to rebuild but just like rebuilding anything, you have to pay attention to detail. I start by taking pictures of everything before and as I disassemble it (which leaves no question where and how it goes back together). I then make sure that everything matches up: gasket for gasket, part for part. Check that the float height and drop to make sure that it is set perfectly. Either epoxy (with gasoline compatible epoxy) the two welch plugs in the bottom of the main body OR use that funky looking 1/4" piece of neoprene that nobody knows what it's for that goes between the main body and the base plate in the welch plug well that's purpose is to seal the welch plugs!

The hardest part of rebuilding a Q-jet is to get the metering rods in without bending them. DON'T FORCE ANYTHING! If the metering rodsare aligned correctly, it slips back together.

my24ktrat
03-27-2010, 05:33:15 AM
...Try rebuilding your quad. 1st , The Carb . Shop in Ontario CA. does good work[ Brad Urban ], if you have a dual carb. bolt pattern on your intake , another option is go with a holley 670 avenger, jusy my .02, DC:bowtie:

Z28PILOT
03-27-2010, 12:54:17 PM
my 2cents..I had my Camaros Q-Jet completely restored by CARB JUNKIES outside Atlanta , GA.. ... test run after completion , little to do but bolt it on right out of the box. . Every part is set at fact spec. This process is WAY more expensive than just putting a carb kit in. Like the previous post said, if your carb has the bad shakes and rattles of worn parts, then it needs a restoration by someone who really know what they are doing not a kit. If the carb isn't original or means nothing to you and you just have to have a Holley , then buying a new one is probally the way to go whatever one floats your boat.

, QJet is just fine. fo rthe street:bowtie:

warped
03-27-2010, 02:53:32 PM
For a mild 350, I would not recommend anything larger than a 600 or maybe a 650. You can use the 750 Q-jet (and I suggest you do) since it has the very small primaries that will give you good throttle response on the street. If you want to tackle the rebuild by yourself, get the Cliff ruggles book (Amazon), it is probably the best to explain how to as well as better performance. If you choose, you can even have Cliff do the rebuild, or ask here for other sources. Good luck.

www.cliffshighperformance.com