thanks for the information, I am in the process of rebuilding mine and am not having much luck right now. seems to be an issue with the power valve because when I adjust the mixture screws not much happens.
Vette(s): 1973 Orange Metallic Coupe (orig owner), L82, 4 spd (WR), PS, (A/C & PW (I installed from wrecked 73)), leather, AM/FM Stereo, ran with '65 FI unit earlier & will again some day.
There's a couple of good books on Qjets, one by HP books and the other by Cliff Ruggles.
At idle the power valve should be down unless there's a vacuum problem. A good cleanup and rebuild will probably take care of the problem unless there's a vacuum leak somewhere else. It's surprising (at least to me) how little air an engine uses at idle so a minor leak can have a large effect..
Vette(s): 1981 Blue Ice Met. w/pearl ghost flames
3.45 Dana 44.
Make sure your primary throttle shaft doesn't have any up, down, front to rear play in it. This will be a source of a vacuum leak. If it does, there is a bushing kit out there that will fix that problem. Very common with Q-jets, especially 4 speed car because of being on and off the gas pedal between shifts.
GEN III 5.7L "LS6" Engine swap TKO500 5 spd.
3.54 Dana 44
'69 "N11" Sidepipes Borgeson Steering Box Born 8/1981
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