Edelbrock Carb Vacuum Lines

#1CutlassSupreme · 05-14-2008, 10:05 AM

So I just got my new Edelbrock Thunder Series 650CFM Carb and my Performer Intake. (Freakin' excited like christmas here!!)

Anyway, on the back side of the carb there is a vac port that can be used for the power brake booster, but there is also a port on the intake manifold just like on the stock 350 Olds intake.

Any suggestions on which one is best to hook into or if there is an advantage one way or the other? More vac on the carb vs. the manifold?

I'm running a bit bigger cam and I'm doing a 4-wheel power disc brake conversion with a new booster and new master cylinder. So what I gather from an earlier post is that I'll need as much vac as I can get (Btw; the car currently has stock front disc brakes.)

Thanks!

J-(Chicago) · 05-14-2008, 02:14 PM

I'd run manifold vacuum.

joe_padavano · 05-14-2008, 03:02 PM

There's absolutely no difference. They both provide manifold vacuum. Just pick one and cap the other.

#1CutlassSupreme · 05-14-2008, 04:28 PM

Kinda figured they were bout the same, but wasn't sure if one beling closer to the head had more or less vac than the other.

Thanks again.

05-14-2008, 10:05 AM	#1 (permalink)
#1CutlassSupreme Member Join Date: Apr 2008 Posts: 52	Edelbrock Carb Vacuum Lines So I just got my new Edelbrock Thunder Series 650CFM Carb and my Performer Intake. (Freakin' excited like christmas here!!) Anyway, on the back side of the carb there is a vac port that can be used for the power brake booster, but there is also a port on the intake manifold just like on the stock 350 Olds intake. Any suggestions on which one is best to hook into or if there is an advantage one way or the other? More vac on the carb vs. the manifold? I'm running a bit bigger cam and I'm doing a 4-wheel power disc brake conversion with a new booster and new master cylinder. So what I gather from an earlier post is that I'll need as much vac as I can get (Btw; the car currently has stock front disc brakes.) Thanks!

05-14-2008, 02:14 PM	#2 (permalink)
J-(Chicago) Seasoned beater pilot. Join Date: Jan 2007 Location: Chicago Posts: 1,538	I'd run manifold vacuum. __________________ I'd rather have a numbers matching poker hand.

05-14-2008, 03:02 PM	#3 (permalink)
joe_padavano Moderator Join Date: Mar 2007 Location: Northern VA Posts: 1,540	There's absolutely no difference. They both provide manifold vacuum. Just pick one and cap the other. __________________ Joe Padavano 64 Jetstar 88 Conv 66 442 L-69 Conv 68 W-30 69 H/O 69 442 70 W-30 72 442 84 Custom Cruiser 86 Caprice wagon (w/307 Olds)

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Edelbrock 750 cfm carb	fearthisrocket	Parts For Sale	0	02-18-2008 06:19 AM
Edelbrock 1406 carb and fuel economy	Huron	Small Blocks	1	07-09-2007 11:56 AM
vacuum lines	terribleonexx88	Small Blocks	8	03-16-2007 12:00 PM
Air cleaner vacuum lines	Chumley	Cutlass	5	01-03-2007 06:08 PM
1955 olds vacuum lines - windshield wipers	bbock	Other	7	06-05-2006 11:50 AM

05-14-2008, 04:28 PM	#4 (permalink)
#1CutlassSupreme Member Join Date: Apr 2008 Posts: 52	Kinda figured they were bout the same, but wasn't sure if one beling closer to the head had more or less vac than the other. Thanks again.