Just doesn't feel like the 2 bigger barrels are opening consistently. Any thoughts?

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1984 Camaro Z28
305 c.i. LG4
Rochester Quadrajet 4-barrel carb
5 spd trans.
Accel Superstock wires
Accel dist. cap & rotor
Bosch platinum plugs
K&N air filter
Dynomax Super Converter
Dynomax Super Turbo muffler
chrome tips
Cooper Cobra 235/60R/15 (fronts)
Cooper Cobra 245/60R/15 (rears)
160F thermostat
...and more to come!

http://members.rogers.com/copperchick010

 

Possibility: a lot of qjets have linkage that goes to a swinging block. So when engine is cold and choke is on or partially on, it swings out and keeps secondaries from opening. They can get out of adjustment and sometimes block off the secondaries when they are not supposed to.

Linkage is a pain, so in these situations, I drive out the pin the swinger is held by, and grind a little off the swinger.

 

This makes sense. I'll have a look on days off. The problem seems to have started after I had the pull-off valve replaced. Does that make sense? Thanks for your help. Tracey

 

I have a race built Q jet, built by Alex Cook at Rochester I can let go of for $125
Would that help?


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'99 Z28 M6 Red, 375hp,
'74 Corvette 383 Stroker, 4 speed,Yellow
'84 Z28 Racecar, big 355, Yellow
'95 K3500, Diesel, Dually, Crewcab, longbed

 

Egad! That went stright to my Id! Uh, okay, let me think about it...yes, yes it would help. There is, however, the issues of shipping and exchange rate. If you're familiar with these, fill me in on the details. I'm interested.
Tracey