General Category > Quadrajet Carb Talk and Tips
Need help with the jets and metering rods for a 305 chevy
jamon8:
its my smoothness right off idle. it seems like when I am just opening the throttle blades and accelerating slowly and hit the gas to take off it hesitates a little bit.
would this be the apt adjustment
jamon8:
well I turned the apt screw out to 4 1/4 turns and the hesitation is gone. it is really running great. the only problem I have with it is when I go to start it up on a cold day, like we have now, it really starts to stuble and surge like a couple of plug wires are off the plugs. what would cause this?
thanks for all your help cliff
Cliff Ruggles:
Adjust the choke pull-off and the fast idle rpm's so it starts and runs smooth on the high step of the fast idle cam.....Cliff
jamon8:
I adjusted the choke pull-off, but it seems like it takes too long for the choke pulloff to engage and untill it engages the engine runs really rich and bucks, shakes and feels like its missing.
the vaccum line on the choke pull off seems a little loose. I will try to get a new line on it and see if that helps.
does the choke pull off not engaging right away mean that it is no good and should be replaced?
Shark Racer:
The choke pull-off should engage pretty much immediately.
Did you test it? Remove the vacuum line, fully retract the pull off and then cap the vacuum port with your fingers. The pull off should not retract. If it does, you need a new pull-off.
The one I received from Cliff is GREAT. I highly recommend it.
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