qjet issues....

[84blazend]

ok, so ive got a problem with the qjet in my 305 84 blazer. I rebuilt it last fall, and i haven't had any problems with it until now. When i accelerate from a stop (traffic lights and whatnot), the damn thing literally falls on its face and dies. If i get out of the throttle, it runs ok again. I believe it had .73 jets in it when i had it apart. Any ideas here?

Are there any good websites for modifying the qjet at all? I've rebuilt 2 so far (the blazer and a friends 85 el camino), and enjoyed working on them as crazy as that sounds.

 

[Dudge]

http://www.amazon.com/Rochester-Car...4715855?ie=UTF8&s=books&qid=1175759549&sr=8-2

This is the boox everyone recommended to me. I bought a used copy off of Amazon. I haven't read all of it yet, but everyone says it has all the info you will ever need. My carb is pretty much new (reman. from AutoZone) and looks brand new. It has the same problem you state. At WOT it's an absolute dog. It doesn't even feel like it gains RPM. But at half throttle or so it runs OK. So you may have other problems. Vacuum leak, timings issues, etc. I gotta get a timing light and a vacuum guage and check out some things on mine before I go tearing into the carb.

 

[Thunder]

Check the accelerator pump and linkage. Maby the accelerator pump is un hooked or not working.