holley 600 cfm tuning/issues

viperlocc · October 14th, 2008, 07:42 PM

I watched the video on basic tuning for the holley series carbs. On the part that explains the idle mixture screws, it says to screw them in till you feel it starting to get tight, then backing out 1.5 turns. I went and looked at how mine were and i had to screw it in on both sides till probably 5 to 6 turns. I did it like the video and the car wouldnt stay running so i pulled them back out to 4 turns and it runs fine now. my question is, why would they be pulled out so far to what the video says it to be?

current setup to help solve problem - windsor jr heads, e303 cam, timing advanced to 12*

ujslost · October 14th, 2008, 08:37 PM

1.5 - 2 turns worked fine for me on my holley 600

fairlane_68 · October 14th, 2008, 09:30 PM

They're all gonna be different, mine were about 4-5 turns out. I always turn them all the way in, then turn them out 4 turns, and start the car, then fine tune it from there.

stangfreak · October 14th, 2008, 10:04 PM

the holley 600 is a piece of shit to start with. get a 650 double pumper and go from there

October 14th, 2008, 07:42 PM	#1
viperlocc Regular 1985 Mustang GT Join Date: Oct 2008 Location: Stevens Point Posts: 316 iTrader: 0 reviews	holley 600 cfm tuning/issues I watched the video on basic tuning for the holley series carbs. On the part that explains the idle mixture screws, it says to screw them in till you feel it starting to get tight, then backing out 1.5 turns. I went and looked at how mine were and i had to screw it in on both sides till probably 5 to 6 turns. I did it like the video and the car wouldnt stay running so i pulled them back out to 4 turns and it runs fine now. my question is, why would they be pulled out so far to what the video says it to be? current setup to help solve problem - windsor jr heads, e303 cam, timing advanced to 12*

October 14th, 2008, 08:37 PM	#2
ujslost MM Fanatic Join Date: Mar 2007 Location: Albertville, AL Posts: 3,920 Blog Entries: 1 iTrader: 1 reviews	1.5 - 2 turns worked fine for me on my holley 600 __________________ 1986 Mustang GT t-top time piece!

October 14th, 2008, 10:04 PM	#4
stangfreak Banned MEMBER #334 Join Date: Feb 2006 Location: Wyandotte County Posts: 1,633 iTrader: 0 reviews	the holley 600 is a piece of shit to start with. get a 650 double pumper and go from there __________________ [SIGPIC][/SIGPIC] [SIZE="4"]"This just in....14.79 @ 92.15 is not fast"[/SIZE]

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October 14th, 2008, 09:30 PM	#3
fairlane_68 Regular Join Date: Aug 2008 Posts: 404 Blog Entries: 5 iTrader: 0 reviews	They're all gonna be different, mine were about 4-5 turns out. I always turn them all the way in, then turn them out 4 turns, and start the car, then fine tune it from there.

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