73-87chevytrucks.com

73-87 Chevy _ GMC Trucks => Performance => Topic started by: Rockin77 on March 09, 2008, 12:39:35 am

Title: carb
Post by: Rockin77 on March 09, 2008, 12:39:35 am

I have a stock rebuilt 350 with stock carb. what kinda carb would give me better response and power??

Title: Re: carb
Post by: dunedigger on March 09, 2008, 12:44:51 am

Just on opinion, if it were my truck and I didn't intend on doing any off road things with the truck I would look into holley street avenger.  Those are very easy to install and great performance.  Just my opinion.

Title: Re: carb
Post by: VileZambonie on March 09, 2008, 07:44:29 am

If you have a quadrajet I would just rebuild it.

Title: Re: carb
Post by: HAULIN IT on March 09, 2008, 06:09:18 pm

Ditto on the Q-jet. A little time & a few bucks is all you need. It's hard to beat the Q-jet for normal useage. The Q-jet when working correctly will not be "at fault" for any lack of response or power. That is a pet peeve I have. Something is not quite right with something & many people start throwing money/parts at it instead of diagnosing the problem & then making a good decision on repairs. What is this truck doing or not doing that makes you think you should throw the carb away? Lorne

Title: Re: carb
Post by: Rockin77 on May 05, 2008, 01:19:48 am

how do i tell if i have a quadra jet??

Title: Re: carb
Post by: Stewart G Griffin on May 05, 2008, 02:50:08 am

Well, the carb should say "quadrajet" on it.  Can you provide a picture?

i too am a firm believer that the quadrajet provides excellent service and should be tuned/rebuilt first if, in fact, you have one.

But to answer your original question, probably weber carbs---preferably 4 of them----four two barrels so that  each cylinder really has it's own exclusive throat and intake runner.  This is my ultimate goal as far as carburated setups go.  But it's cost prohibitive---about 4 grand.  Even Electronic fuel injection would be cheaper.

Title: Re: carb
Post by: 78 Chevyrado on May 23, 2008, 10:38:51 pm

I have an edelbrock 1406 on my 78, but i had it around and stuck it on.  it does great, and a holley will too, but you will still get the power, and get better fuel mileage out of a quadrajet.  In an edelbrock and holley the primaries and secondaries are the same size.  In a quadrajet, the primaries are smaller, giving you the velocity you need for easy driving, but have huge secondaries for when you need them.  If i hadn't have had an extra edelbrock sitting around, I'd have rebuilt the quadrajet that came on it.  The QJ will be excellent unless you hot-rod it, and even then, if you know how to tune it and find the parts, a QJ can keep up with other carbs. 

Title: Re: carb
Post by: Pushrod on June 01, 2008, 02:14:23 am

A Holley spreadbore seems to be the most overlooked and easiest carb to tune...