Holley 600 CFM Carb/Electric Choke - The 1947 - Present Chevrolet & GMC Truck Message Board Network

jtmiller92 · 06-24-2005, 10:08 AM

Hey, I am selling the 600 Holley Carb from my 88 GMC, i'm putting TBI back on the truck so will no longer need it. Carb runs fine, a friend of mine recenly rebuilt it. I'm just looking for a little better gas mileage. Asking $75.00 obo shipped.

jtmiller92 · 07-03-2005, 10:40 AM

Ttt

GMC AMI · 07-03-2005, 05:43 PM

Any power valve blowout protection or is this an earlier model where a back fire blows it up?

jtmiller92 · 07-03-2005, 06:30 PM

Mike, Your guess is as good as mine. I really dont know much about carbs, I'm an FI kind of Guy. He rebuilt it for me when i ran it out of gas and sucked some junk into it. Has ran fine ever since, but its in an 88 GMC that I am putting the TBI system back on. I took pics of the numbers in case anyone wanted to run them................jt

*rage'nrat638* · 07-03-2005, 07:21 PM

60.00 shipped and its sold.......just reselling.......if not ok...

best thing about this carb....is vacuum secondarys.....only one power valve...

double pumpers have two.......now that sucks......

BTW....want better gas mileage.....put a two barrel on.......did that to mine....can't tell the difference......except......4 more miles per gal....

ureckme · 07-03-2005, 08:06 PM

That carb has back fire protection built in from Holley. Matt

jtmiller92 · 07-03-2005, 11:07 PM

Mike, You have first shot at the Carb if you want it. If not I'll PM you rage"nrat638. Thanks, Jt

GMC AMI · 07-04-2005, 05:25 AM

Quote:

Originally Posted by jtmiller92

Mike, You have first shot at the Carb if you want it. If not I'll PM you rage"nrat638. Thanks, Jt

Thanks JT, I will buy it for 65 shipped. Just PM me for payment info. Mike

jtmiller92 · 07-04-2005, 09:26 AM

Sale Pending, Mike you have a PM.

duke10 · 07-04-2005, 01:18 PM

I have that same carb on my 72 gmc and was wondering what modifications if any would need to be made to switch to a two barrell for better mileage. Does anyone have suggestions on a good two barrell?

GMC AMI · 07-05-2005, 04:14 AM

Quote:

Originally Posted by jtmiller92

Sale Pending, Mike you have a PM.

Paypal sent, thanks!

GMC AMI · 07-09-2005, 06:31 AM

Carb received, thanks JT!

06-24-2005, 10:08 AM	#1
jtmiller92 Registered User Join Date: Jan 2005 Location: Nicholasville, KY 40356 Posts: 461	Holley 600 CFM Carb/Electric Choke Hey, I am selling the 600 Holley Carb from my 88 GMC, i'm putting TBI back on the truck so will no longer need it. Carb runs fine, a friend of mine recenly rebuilt it. I'm just looking for a little better gas mileage. Asking $75.00 obo shipped. __________________ 2011 Camaro 1SS LS3/6 Speed Last edited by jtmiller92; 07-03-2005 at 10:49 AM.

07-03-2005, 10:40 AM	#2
jtmiller92 Registered User Join Date: Jan 2005 Location: Nicholasville, KY 40356 Posts: 461	Ttt __________________ 2011 Camaro 1SS LS3/6 Speed

07-03-2005, 05:43 PM	#3
GMC AMI Registered User Join Date: Apr 2004 Location: The Other Maine! Posts: 2,236	Any power valve blowout protection or is this an earlier model where a back fire blows it up? __________________ 1968 Chevy 4x4 307 4 speed

07-03-2005, 06:30 PM	#4
jtmiller92 Registered User Join Date: Jan 2005 Location: Nicholasville, KY 40356 Posts: 461	Mike, Your guess is as good as mine. I really dont know much about carbs, I'm an FI kind of Guy. He rebuilt it for me when i ran it out of gas and sucked some junk into it. Has ran fine ever since, but its in an 88 GMC that I am putting the TBI system back on. I took pics of the numbers in case anyone wanted to run them................jt __________________ 2011 Camaro 1SS LS3/6 Speed Last edited by jtmiller92; 07-03-2005 at 06:31 PM.

07-03-2005, 07:21 PM	#5
rage'nrat638 Account Suspended Join Date: Mar 2003 Location: THE FALL GUY CHICAGO IL Posts: 5,883	60.00 shipped and its sold.......just reselling.......if not ok... best thing about this carb....is vacuum secondarys.....only one power valve... double pumpers have two.......now that sucks...... BTW....want better gas mileage.....put a two barrel on.......did that to mine....can't tell the difference......except......4 more miles per gal.... Last edited by rage'nrat638; 07-03-2005 at 07:28 PM.

07-03-2005, 08:06 PM	#6
ureckme ureckmefixit2@cox.net Join Date: Dec 2004 Location: Mesa AZ. (Phoenix) Posts: 1,284	That carb has back fire protection built in from Holley. Matt __________________ That's U RECK ME FIX it 2 74 Chevy Short Bed 355ci Sportsman II 64cc Angle Plug Crower Custom Grind .462in .486ex Dyno Test 422hp @ 5600 And it's got a Holley 3.73 Gears 12 Bolt 3.73 w/Posi 700R4 Going In I'm a Body Man So There! That's why it's not painted

07-03-2005, 11:07 PM	#7
jtmiller92 Registered User Join Date: Jan 2005 Location: Nicholasville, KY 40356 Posts: 461	Mike, You have first shot at the Carb if you want it. If not I'll PM you rage"nrat638. Thanks, Jt __________________ 2011 Camaro 1SS LS3/6 Speed

07-04-2005, 09:26 AM	#9
jtmiller92 Registered User Join Date: Jan 2005 Location: Nicholasville, KY 40356 Posts: 461	Sale Pending, Mike you have a PM. __________________ 2011 Camaro 1SS LS3/6 Speed

07-04-2005, 01:18 PM	#10
duke10 Active Member Join Date: Aug 2003 Location: san diego Posts: 833	I have that same carb on my 72 gmc and was wondering what modifications if any would need to be made to switch to a two barrell for better mileage. Does anyone have suggestions on a good two barrell?

07-09-2005, 06:31 AM	#12
GMC AMI Registered User Join Date: Apr 2004 Location: The Other Maine! Posts: 2,236	Carb received, thanks JT! __________________ 1968 Chevy 4x4 307 4 speed



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