carburetors

[mikewb]

wondering how much difference in mileage there is if any between a quadrajet and a 600 edelbrock. someone said that quadrajets get better . if soo thinkin about doing a change

[Captkaos]

by design a q-jet with smaller primaries (with your foot out of it) will yeild better fuel mileage than the edelbrock.

[mikewb]

by how much? enough that its worth it to buy one?

[Captkaos]

What are you getting now for MPG?  price worth it depends on how well you are getting now.  If the q-jet was free that would be another story.  Generally about 15-17 mpg is doable on a stock setup.

[mikewb]

Now im getting 8 if lucky... soo... How much is it to rebuld one if i could get one for free..?

[mikewb]

What im runnin is a 350 with mild cam headers dual exhaust edelbrock performer intake and carb

[Captkaos]

Now im getting 8 if lucky... soo... How much is it to rebuld one if i could get one for free..?

About $25 and a little time.  How much are you in it?  Alot, a little...
It is really hard to say since I don't exactly know what you have, but I had a stock 81 K10 with a crate 350 and a q-jet and it got 12 mpg

[123 pugsy]

I'm getting between 10 and 14 with my LWB 350 Edelbrock carb,RV cam, 3.4 gears. Don't forget that we have a larger gallon up here.
That would probably work out to 8-12 per US gal.
It looks like the Edelbrock carb is not good for milage.
Everyone on the board keeps mentioning these good milage figures and I keep scratching my head as to how they get it.    ......see what happens with the TPI....

[Captkaos]

my 87 R10 with TBI gets almost 22mpg on the highway.  I actually am checking the mpg for city driving again right now.

[Uno99]

I was getting 15-18MPG with my qjet.  I am swapping my qjet out today.  I may be getting rid of it. I am goingto clean it up then I'll send you a PM with some pics.

[mikewb]

ok . I might trade somebody my edelbrock for a qjet

[123 pugsy]

my 87 R10 with TBI gets almost 22mpg on the highway.  I actually am checking the mpg for city driving again right now.

WOW!    And that's with a U.S. gallon!

[Captkaos]

Yep, I was HIGHLY impressed.  My brother with his 2000 5.3L with a Turbo and got 25mpg on the same trip.

[joesgarage71]

Yep, I was HIGHLY impressed.  My brother with his 2000 5.3L with a Turbo and got 25mpg on the same trip.

Chris,
 who tuned the ECM for your brother?

[Captkaos]

We tune them.  www.gracemotorsports.biz is the website.
Last time it was 525hp 610lb/ft on 12lbs of boost.  We are going to tune the 6.0L in my 73-87chevytrucks.com truck once the turbos goes on..