Holley carb. gurus needed!

Dark Knight · 06-15-2006, 10:19 AM

Might check the primary side for dirt/high float level too. How high do you have the idle set? You can also crack open the secondaries a little more, there's a screw underneath.

82 GT · 06-15-2006, 10:41 AM

My idle speed is around 1000rpms. I was wondering if an idle speed that high negates the idle mixture adjustments.
I checked the floats and they are set so that fuel just trickles out the sight plugs.
It runs fine now since I took the secondary bowl off again and blew out any debris that might have been in there and replaced the gasket.
It's just that the idle mixture screws don't work now. It wants the screws all the way in.
I didn't check the transfer slot on the butterflies to see how much is exposed yet. I don't really want to remove the carb. and mess around with that unless I really need to.
Since I don't know much about carbs, I'm always afraid I'm going to screw something up and make it much worse that what it was.

Dark Knight · 06-15-2006, 11:02 AM

Does it have to idle that high? Setting the idle speed in gear?

82 GT · 06-15-2006, 11:28 AM

1000rpm idle speed is normal with a performance engine...isn't it?
Why would I want to set my idle speed in gear? That would give me an even higher idle in park.

lx mike · 06-15-2006, 07:06 PM

Quote:

Originally Posted by 82 GT

1000rpm idle speed is normal with a performance engine...isn't it?
Why would I want to set my idle speed in gear? That would give me an even higher idle in park.

That might be why the idle mixture screws aren't doing anything.

where does the idle drop when you put car in gear?? 1000 is kinda high unless you need it there to keep from stalling.

last but not least: GO READ THE BOOK!!!

06-15-2006, 10:19 AM	#1
Dark Knight Registered Member Join Date: Oct 1998 Location: Az Posts: 854	Re: Holley carb. gurus needed! Might check the primary side for dirt/high float level too. How high do you have the idle set? You can also crack open the secondaries a little more, there's a screw underneath. __________________ 84 convt,roller 302,AFR's, performer 3.55's, underdrives BBK shorties stock cam, 1.7's 13.58@102.84 and a '68 stang .. project 8 sec street car... 557 big block + N20 :-) http://members.cox.net/darkknight302/68nwrear.jpg

06-15-2006, 10:41 AM	#2
82 GT Import Slayer Join Date: May 1999 Posts: 2,241	Re: Holley carb. gurus needed! My idle speed is around 1000rpms. I was wondering if an idle speed that high negates the idle mixture adjustments. I checked the floats and they are set so that fuel just trickles out the sight plugs. It runs fine now since I took the secondary bowl off again and blew out any debris that might have been in there and replaced the gasket. It's just that the idle mixture screws don't work now. It wants the screws all the way in. I didn't check the transfer slot on the butterflies to see how much is exposed yet. I don't really want to remove the carb. and mess around with that unless I really need to. Since I don't know much about carbs, I'm always afraid I'm going to screw something up and make it much worse that what it was. __________________ '82 GT 351W (.060)Comp Cams 274* Extreme Energy cam, ported & polished heads w/ 1.94/1.60 valves 10.3:1 flat top pistons,stealth intake, Mallory dizzy,Holley 750dp carb, BBK shorties,Flowmaster exhaust,C-4 with 3700 stall converter, B&M pro shifter,8.8 rear, 4:10's, subframes, electric fan, powermaster alternator, 4 core radiator.

06-15-2006, 11:02 AM	#3
Dark Knight Registered Member Join Date: Oct 1998 Location: Az Posts: 854	Re: Holley carb. gurus needed! Does it have to idle that high? Setting the idle speed in gear? __________________ 84 convt,roller 302,AFR's, performer 3.55's, underdrives BBK shorties stock cam, 1.7's 13.58@102.84 and a '68 stang .. project 8 sec street car... 557 big block + N20 :-) http://members.cox.net/darkknight302/68nwrear.jpg

06-15-2006, 11:28 AM	#4
82 GT Import Slayer Join Date: May 1999 Posts: 2,241	Re: Holley carb. gurus needed! 1000rpm idle speed is normal with a performance engine...isn't it? Why would I want to set my idle speed in gear? That would give me an even higher idle in park. __________________ '82 GT 351W (.060)Comp Cams 274* Extreme Energy cam, ported & polished heads w/ 1.94/1.60 valves 10.3:1 flat top pistons,stealth intake, Mallory dizzy,Holley 750dp carb, BBK shorties,Flowmaster exhaust,C-4 with 3700 stall converter, B&M pro shifter,8.8 rear, 4:10's, subframes, electric fan, powermaster alternator, 4 core radiator.

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