Hmm, would this (http://cgi.ebay.com/ebaymotors/Carburetor-1981-Oldsmobile-307-5-0-Carb-Quadrajet-NOS_W0QQcmdZViewItemQQcategoryZ33550QQitemZ7985823 335QQrdZ1QQsspagenameZWD1V) carb work in my engine? It's for an Olds 307 but it says 1981 was the year. I wonder if it's the exact same Q-Jet that's in my car. Looks brand new, always good to have an extra around ya know?

Over a tired Q-Jet, yes. Over a well tuned one? No. It will work, but I would spend $100 on yours and make it sweet.

The older ones were a little different. I picked up a nice 83 carb to replace my crushed 85 carb and it was more like the 1985-1987 442 "9" carb. Mine it ran awesome for smoothness and driveability. You just can't beat the tuneability and driveability of a Q-Jet. I know, a lot of people don't like them, but it is often because they don't understand them. Get Doug Roe's book, good $$ spent.

Nice to see one. But for that $$, it better be a 1973 840 cfm SD455 carb or a 1970 429 SCJ carb (yes, they used a Q-Jet!!)! Forget a E4MC for that price!

You can send your carb to Brad Urban's Carb shop (he died some years ago, but the shop was still there) in California and they can do a 1st class rebuild. Better than new. Most Q-Jets that are 100K miles+ have worn throttle shafts, as they wear down the aluminum housing and start leaking. With the ECM controlling fuel, it is less of an issue.

i got good prices and exact match for our club cars in www.recarbco.com

You just can't beat the tuneability and driveability of a Q-Jet. I know, a lot of people don't like them, but it is often because they don't understand them. Get Doug Roe's book, good $$ spent.

If that isn't the plain as day truth! Those smaller primaries are great for fuel economy on a carb that flows 750 cfm! Growing up a lot of the guys I would talk with always called them Quadrajunks (gee, think that's original?). I quickly learned on my 85 Pari once I replaced it with an Edelbrock that wasn't exactly the case!

Brian

Actually all or nearly all Q-Jets after 1977 were 800 CFM. Easy to spot actually, look down the primaries, if you see a bump in the side for one of the screws in the bottom in the venturii ring, 800 CFM, if you see a perfectly round area in the ventiruii ring, then it is a 750.

A friend of mine took a pretty sorry Q-Jet off a 301 Bonneville I had and made it sing on his 1990 Jeep Grand Wagoneer AMC 360. He previously had a 750 Holley 3310 (vac sec) and the Q-Jet was instant 3 mpg better and MUCH better drivability. That is with the 301 jetting! He never needed to change it. It started better and ran better. And he tuned the Holley as best as he and his friend (who is a Holley junkie and a Q-Jet basher) could do. The Holley was a new carb when he bought it. It did ok at WOT, but you don't go 4 wheeling at WOT....

I have a Edelbrock 750 on my T/A, I like it, but wish I had a Q-Jet. I had some problems with a couple tha I could not figure out, massive flooding at over 50 mph if I went to WOT. Like the float was allowing too much fuel in. AC Delco fuel pump, so I assume not too much fuel. Never did figure it out. I have a 76 Cad 500 carb laying around somewhere. I had that on for a while, it did it too. It was on a 455 Pontiac....

I would spend $100 on yours and make it sweet.
$100? For what a rebuild? What do you mean by that?

Just that, get a kit from NAPA for $20 (well, it was $20 the last time I bought one!), and get with the Carburator Shop in CA for the bushing repair kit for the throttle shafts, get a new float (always!!!), get a pin vise (only needed for mods), and tear it down and rebuilt it. Be careful, make sure all is perfectly cleaned (all the air bleeds, the are a problem spot if the carb is not cleaned with Gumout regularly) and then spend the time doing 100% of the alighnments/adjustments to it per the FSM. Then do some of my mods if you like to enhance it a bit (I say my, because Doug Roe didn't cover them on the E4MC/E4ME carbs, but I did much of his mods to it anyway) and it ran just great.