Let me know what you think....I am new to the Carb world and want the best for my rig. I have a Edelbrock performer 650cfm and was going to go with a Rochester Quadrajet for my 72 Blazer. Which will be more effecient?? Its mainly going to be a daily driver.....

I would vote for the Quad.

I have ran the Edeljunk on several street engines and have seen a few on the trail. Just never seen that carb work great only good. its not good at all on the trail.

If at all possible I say throw them both away and go with a holley. I have ran both the Q-jet and the Edle. Always had better luck and performace with the holley...

Good luck in which ever you choose

I used a Quad when I first got my truck but always had problems with the idle and choke. Last month I switched to a 750cfm Performer w/ electric choke and my truck has never ran better. I get better gas mileage believe it or not and the idle sounds like a damn stock car. I haven't used it on the trail yet due to me being 1000 miles away from home and at college(can't afford something to break) and if I have any problems when I get home I'll probabally put on the off-road upgrade from Edelbrock.

I would stick with the Edel

Had an AFB and a Performer, both are shit. Get the Q-Jet, learn the ways of the Q-jet and you shall go far, Grasshopper.

Squash

I can't beleave people are leading you astray!...Q-jet is the only way!

If you only play on pavement you might try something else.

If you wheel get the Q-Jet. If you do pavement wheelin get a Performer.
Performers are NOT for off camber situations, if you run one you will regret it!:skull:

i say this: neither is better in all situations than the other- they both have advantages and disadvantages.
performer is in my opinion far more capable for making lots of horsepower. i have used several on small blocks that have made from 200-420 horsepower. the best thing about it is that you can just bolt it on and go- no tuning required which i like cause im lazy. but for hills and whatnot it sucks balls. good for a mudder or street truck. the Q-jet is good cause you can get it for about free and if dont work you can clean it up and rebuild it. i have had one that worked good but several that just didnt ever run good. i would vote that the q-jet is better for gas mileage, but i dont have any hard evidence that supports that, but my truck with a performer 750 manual choke gets probably 10mpg or less.

I have proof that the Performer is a POS for off camber wheelin....Try to go through the Con with one.....I tweeked this carb, put spring loaded seats, adj the float and it still was a POS....Put the Qjet on, and had 0 problems...
Plus when I swapped out the performer to a Qjet my MPG increased about 5 MPG....
As mentioned before, Performers are for street wheelers.....
Holley carbs are pretty much garbage too for off roading....But I have seen that Holley just recently put out a new offroad carb, but I don't know if it's any good yet....:skull:

Alright guys here's the deal.......I will reinterate it........its a tow rig for my 85 toyota rockrawler!!! I want a little performance for those hills with the trailer, but as far as wheeling/crawling/mud.....nill!! I might goof around here and there, but my rockrawler for the trails/rocks/offcamber sit's thats all for the 85 Toy! Keep that in mind and also the fact that I know NOTHING about Carb'd vehicles!! And I mean NOTHING!!
I have been building my Toy for about 3 years and know everything about it, and now I am jumping into a whole new ball game. Any info, thoughts, feeling, etc. are appreciated thanks!!:beer:

As much as I have always loved the Q-jet, Holley's new truck avenger carb is the S**t. I put one on my "mostly stock" 85 k5 W/350 and will never go to anything else. bolt on took 1 hr no adjustments were needed. it flows at 670 cfm and will maintain an idle at a 45 degree tilt in almost any direction. summitt $398.00
:smokin: +:smokin: =:rasta: - Is it wrong??:flipoff2:

As far as street performance it sounds and run very healthy, and gives fantastic power for towing.

summitt $398.00 ouch! for that much you could swap to tbi

well then go with the performer since you already have it. performer's are maintaince free compared to the Q-jet but you might get better gas mileage with the q-jet if it is fuctioning properly. but it aint like your gonna get 30mpg with one particular carb, and i damn sure wouldnt spend 300-400 dollars on a tow rig carb.

The quadrapuke has some serious followers, I had one on a street sleeper with a pontiac 455. Pretty good for mileage as you can run on primaries more on the street in light driving than with holley or edelbrock. I have worked on edelbrocks, when friends installed em and needed some help making the thing run or idle ok on the street in a car. Well more race car though.

I like holleys as I have 4 running around right now. Two on shelves and 2 on vehicles. I installed a street avenger on a one ton crew cab chevy, 4x4, 350, 400 automatic. For off camber stuff forward and backwards it does fine, sounds and runs awesome on the road, an air gap manifold from edelbrock helps though.

I will not speak on extreme stuff as my truck is a big crew cab chassis cab with a tool box bed box on it, I bought it used mostly for the drivetrain, but since it runs I play with it.

For around my acreage with some sorta decent hills and stuff it works fine out of the box.

Research the quadrapuke on the net, for some racing and some off camber idle stuff they do seem to rule.

I can install a throttle body, but hate em as far as parts and complexity goes. Had injectors go out, fuel pumps go out, and after that give me a carb every time.

IMO for offroad QJet, period. For mostly road service, the AFB based model would be fine but I would prefer the Edel QJet.

I thought the Performer was the same thing as a Q-jet but new not rebuilt. What am I missing here?

What most people refer to as "the Edel Performer" is a remake of the old AFB square bore design. Generally a pretty good standard spare bore design that flows around 650 CFM IIRC. They work VERY well for small block street heros and such but they have little tolerance for angles or sloshing. They also make a "Performer" based on the QJet but, as you said, new. They also (I’m told) made some minor changes to the QJet internals to bring the old design up to date with modern improvements. Don’t know if it’s true, or what exactly that means.

I do know that the Edel QJet I had on my 75 Blazer with mild 454 rocked my world! I had run 2 warmed over QJets which worked well enough but were a little finicky. When the second started having problems with worn butterflies I decided to try the Edel AFB. Damn, ran SWEET when I took it down the street! Super crisp off idel and pulled strong. Till I hit a speed bump that is. Actually made it cough and sputter badly. Took it out to a local trail that was little more than a rutted fire road with some moderately steep but short climbs. It had serious trouble including completely dieing at points. Returned it the next day after talking to Edels techs about their “off road” kit. They told me that for what I wanted to do, “don’t waste your money” and that I should return the AFB. That’s actually what they told me. And they weren’t trying to get me to fork out extra for the QJet because I told them I was just going to fix my old QJet before forking out the extra for the QJet. Anyway, I did return it and got the Edel QJet. Best carb I’ve ever run. Straight out of the box with no mods it was awesome, got better mileage than ever before, and it ran/idled at crazy angles with no problems. FWIW, I was also running the Edel Performer intake and cam. I loved the engine…

Thanks a lot guys for all of the info..... I really appreciate it. whats the difference though between the different q-jets?? I saw a Rochester Q-Jet then Edelbrock, then etc. Are they all the same, just a different manufacturer??

well,,,,from my own exper.,,,,,,, a holley will give the best street performance. they suck on off camber offroad situations. i hate a elderbrock with a passion,they suck ass. but for the best all around,,id go to autozone(i was a manager there for 3 yrs),and get a 99 buck quad. cant beat them for dependability.

Anyway, I did return it and got the Edel QJet. Best carb I’ve ever run. Straight out of the box with no mods it was awesome, got better mileage than ever before, and it ran/idled at crazy angles with no problems. FWIW, I was also running the Edel Performer intake and cam. I loved the engine…

Thats the carb I was thinking about.
I Think I am going to run my stock Q-jet and save my nickles and dimes and get the TPI at the end of the year myself.
By the way I have a Edlebrock cam and inake on my 383 and love the power my truck has, good combination. I'm sold on Edlebrock, I have never had any problems at all with their products.