I was betting some of you have done this. I have an 84 TA with a 305 HO in it. I was thinking of picking up a 600 cfm Edelbrock Performer Carb. Out of the box will this outperform the stock quadrajet? It would be placed on a Performer RPM air gap manifold. I was guessing the Edelbrock carb may not bolt right on the the stock manifold but I may be wrong. Just wanted to know what to expect if I do it.

Thanks

 

The answer to your question is yes it will out perform the q-jet. Do you have an HEI distributor? If you do, then you shouldn't have a problem with things working. I'm not really sure about the computer hook ups (if any). I'm pretty sure that there is a TPS built into those Q-jets.

 

I think rebuilding your Q-Jet for a tenth of the price of that shiney new Edelbrock is what's gonna give u the performance you've been missing

 

The Performer carb will not bolt up to the stock manifold. You also need a vacuum/mechanical distributor to go with it.

Get that Edelbrock carb all set up with the proper supporting cast, so it works the way it should, and you get no more power, no better throttle response (driveability), and worse gas mileage than you get, or can get, with a properly set up stock computer-controlled q-jet and distributor.

Why would you spend in the neighborhood of $500 for that?

As stated, get the q-jet working the way it should, if it actually has a problem. If you want to upgrade something, get an aftermarket coil & module for your current distributor (I'm using Accel parts).

 

Thanks guys. I'm actually starting to hear really good things about the performance capabilities of the stock q-jet. I just recieved my HEI upgrade kit from Summit with the 48,000 V coil. I may stick with the q-jet since it works well with the computer and stock distributor and get a new Edelbrock intake to put it on. Maybe a normal Performer RPM or that new EPS (I need to research that one because it is off idle to 5500 and is supposed to be better than the original Performer. Then I'll get the kit to attach the q-jet to it. I assume one would be needed.

 

If it's the stock HEI distributor you can't recurve it. Timing is all handled by the ECM.

You either need to have a computer controlled QJet and HEI or have NEITHER of them computer controlled. Can't mix-n-match the two.

 

Not sure what you mean by that, Damon. He didn't say anything about recurving or mix/matching (unless the "upgrade" kit includes weights/springs, in which case it's the wrong one).

The Performer intake and EPS intake are both made to mount a spread-bore (like the stock q-jet) directly. Personally, I think the Weiand Action+ and GMPP EGR/q-jet manifolds are better than the Performer types.

 

If it's got a computer controlled HEI distributor you can't use that with any non-computer controlled carb. Likewise, you can't use any non-computer controlled carb if you use a computer controlled distributor. They either have to BOTH be computer controlled or NEITHER computer controlled. That's what I'm referring to about mixing-and-matching.

 

The noted coil, and a 7-pin module, would be an "upgrade" kit, but not sure if that's what miked means/received.

 

i would go with the edelbrock 600 just my opinion by experience. mine gets 20 mpg and outperforms my q jets take offs by nearly double. but thats just my experience.

 

Are you having any problems with your carb to make you want to switch?

 

Nice action+ intake the ignition upgrades you mentioned a rebuild if you need it and you will say, Edel what?

 

crap

 

Actually does the car run good or it having problems. If you just want to make it faster and it is not haveing any problems then I would say that you would be better off going with a set of headers and catback than going with the new carb. Maybe a set of hedmans(a little over 200 w/ y pipe) and a hooker catback(around 200) and you will really notice a difference. Something cheap you can do is upgrade the rods and hanger in the carb(b hanger w/ DR rods) and make sure that the av tension is set good. This will probably only be around 20 bucks and will give you noticably better response. I personally dont think you will get much better performance out of just going to an edelbrock unless something is wrong with you carb and the money would be better spent elsewhere.

Ben

 

Car seems to run pretty good as is so I'm not going to mess with it. Like you said the money could be spent on better things for the car. I'm going to buy an intake and some headers.