73-87chevytrucks.com

73-87 Chevy _ GMC Trucks => Performance => Topic started by: 79c10454 on July 26, 2008, 01:44:06 pm

Title: carburetor issue
Post by: 79c10454 on July 26, 2008, 01:44:06 pm
I have a 670 street avenger holley and original quad which carb is better as far as performance and durability. ??? ???
Title: Re: carburetor issue
Post by: TexasRed on July 26, 2008, 02:35:50 pm
The quadrajet is a great carb. You may need an adapter to get the holley on your manifold. If it's a stock or near stock engine, a stock q-jet is best, while you start moving away from stock, a holley's easier tuneability comes into play. Although if you dial in the quadrajet for the new engine, you get better fuel mileage and it'll be more on than the holley.
Title: Re: carburetor issue
Post by: eventhorizon66 on July 26, 2008, 02:49:39 pm
If you are using a stock spreadbore manifold stick with the Q-jet; adapters kill power.
Title: Re: carburetor issue
Post by: 79c10454 on July 27, 2008, 08:00:13 pm
hey guys thnxs im not using the original intake, performer rpm
Title: Re: carburetor issue
Post by: TexasRed on July 27, 2008, 08:22:58 pm
Is it one of those manifolds with a dual patteren (ie, you could go spreadbore or squarebore). If it's a dual one, and you want to use a squarebore, there's a little plate thing you may need to get the combo sealed up.
Title: Re: carburetor issue
Post by: 79c10454 on August 01, 2008, 10:16:10 am
Yes it is one of those with dual pattern bolt
Title: Carburetor issue bout electric choke
Post by: 79c10454 on August 01, 2008, 10:25:05 am
That holley street avenger i have the electric choke is broken the blk plastic part. Is there anyway i can still use as it was manual choke ???
Title: Re: Carburetor issue bout electric choke
Post by: camdenoilchange on August 01, 2008, 10:30:59 am
check at summitracing.com, i believe they sell a manual choke conversion kit for it.
Title: Re: Carburetor issue bout electric choke
Post by: 79c10454 on August 01, 2008, 10:32:28 am
Hey thnxs bro cuz somebody said i just have take the electric choke stuff and it would be like manual choke i check to summit
Title: Re: carburetor issue
Post by: camdenoilchange on August 01, 2008, 01:06:23 pm
no problem, here's a quick link.

http://store.summitracing.com/egnsearch.asp?N=700+4294925239+400178+4294857713+115&Ne=102560&NeXID=102560
Title: Re: carburetor issue
Post by: 79c10454 on August 01, 2008, 02:17:21 pm
Hey cam i try the link but my part number carb doesnt show up
Title: Re: carburetor issue
Post by: camdenoilchange on August 02, 2008, 08:40:40 am
you may have to research you carb more and go by the style. they may not list your exact model. You'll need to know what series carb you got, i.e. 4150 or whatever it is. I'm sorry I'm not familiar enough with holley to tell you off the top of my head. I'm sure a quick call to summit and they will be able to hook you up no problem.
Title: Re: carburetor issue
Post by: 79c10454 on August 05, 2008, 09:29:10 pm
Hey thanks bro i check with summit and they hook me up ;D ;D
Title: Re: carburetor issue
Post by: camdenoilchange on August 06, 2008, 08:32:33 am
not a problem. ;D