out of control idle with holley
Thread Starter
Junior Member
Joined: Sep 2003
Posts: 23
Likes: 0
From: Strongsville, OH
Car: 85 Trans Am
Engine: 305 LG4
Transmission: 700-R4
out of control idle with holley
I switched from a Q-jet to a holley 600 and can not get it to run right. The engine knocks at idle in gear and every few days the idle will jump to 2000 rpm's when I turn it on. I'm wondering if this has anything to do with jet size or if it's another matter altogether. Right now I'm running size 60 jets. Any info would be appreciated
Also if anyone knows how to re-wire a 700-R4 to work without the computer, please send any info my way.
barspin89
85 TA
305 LG4
Edelbrock Performer intake
Also if anyone knows how to re-wire a 700-R4 to work without the computer, please send any info my way.
barspin89
85 TA
305 LG4
Edelbrock Performer intake
Moderator
Joined: Jan 2000
Posts: 20,981
Likes: 11
From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: out of control idle with holley
Originally posted by barspin89
every few days the idle will jump to 2000 rpm's when I turn it on
every few days the idle will jump to 2000 rpm's when I turn it on
Also if anyone knows how to re-wire a 700-R4 to work without the computer, please send any info my way.
Member
Joined: Jul 2003
Posts: 361
Likes: 0
From: Huntington, West Virginia
Car: 1985 Camaro Z/28
Engine: L69
Transmission: 700r4
Axle/Gears: One-Wheel-WOnder 3.08
Originally posted by barspin89
I switched from a Q-jet to a holley 600 and can not get it to run right. The engine knocks at idle in gear and every few days the idle will jump to 2000 rpm's when I turn it on. I'm wondering if this has anything to do with jet size or if it's another matter altogether. Right now I'm running size 60 jets.
I switched from a Q-jet to a holley 600 and can not get it to run right. The engine knocks at idle in gear and every few days the idle will jump to 2000 rpm's when I turn it on. I'm wondering if this has anything to do with jet size or if it's another matter altogether. Right now I'm running size 60 jets.
Also if anyone knows how to re-wire a 700-R4 to work without the computer, please send any info my way.
https://www.thirdgen.org/techbb2/sho...61#post2315461
Supreme Member
Joined: Apr 2003
Posts: 1,781
Likes: 0
From: B'ville, WV
Car: 2002 Formula Firebird
Engine: LS1
Transmission: 4l60e
Axle/Gears: 3.23
You need to adjust the fast idle screw down some.
With the car off go WOT and look on the pass side of the carb. There will be a screw at the bottom of the linkages. Unscrew it some and then start the car again.
Do you still have the papers that came with the holley? Its all in there.
BTW I have no computer. And never wired my 700r4 up. I just haven't use the TC lock-up.
With the car off go WOT and look on the pass side of the carb. There will be a screw at the bottom of the linkages. Unscrew it some and then start the car again.
Do you still have the papers that came with the holley? Its all in there.
BTW I have no computer. And never wired my 700r4 up. I just haven't use the TC lock-up.
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iTrader: (1)
Joined: Mar 2001
Posts: 236
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From: NewBrunswick,Canada
Car: Camaro sc
Engine: 350 cid.
Transmission: 700R4
When i put my Holley on i had the same problem,I found that the secondairy set screw was holding the secondairies open slightly.Didn't matter how much i set the idle screw down it still idled high.The screw is located at the back of the carb on the passenger side,you have to get at it from the bottom so you'll have to probably take the carb off to adjust it.
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