Should I use this 7027213 QJet on my old Stock - Super Stocker Wagon ?

[AHotRod]

Cliff,
I've got 3 Q-jet cores to choose from and would like to get your advice on if one has advantages over the others.
Here are the numbers:
1. 7027213
2. 7040230
3. 7043210

The carb will be used on my X-"Stock / Super Stock "Eliminator Chevy II Wagon that I'm returning to the street and strip after many,many years.
http://i267.photobucket.com/albums/ii283/LimeSqueezer/GlennsWagon2.jpg[/img]]

The engine in it now is a 327 (11-1, .500" lift, 246@.050 on a 106) with a Victor Jr. intake (all old '80's Super Stock stuff) that has the #7027213 Q-jet on it, and the throttle shafts are now loose and in need of rebuilding, something we can do since my buddy has a bridgeport in his garage.




Later this summer, I plan to remove the 327 and install a 383 when it's ready.

I will be in need to purchase new parts from you to do the rebuilding.

[jamesF]

Just wanted to say thats a "BOSS" car and a nice wheelstand!!!

[AHotRod]

Thanks James, it's a great old Wagon, and we love it ! 

[Cliff Ruggles]

Without question use the 7043210.  It has the later float arrangement and is superior in every respect commpared to the early Chevy and Caddillac units.

It will require the installation of smaller main airbleeds, we sell screw in bleeds and a jetting package for that carburetor number for racing, plus all of the other parts needed for a complete/correct HP rebuild.

We also need to go over a few venting modifications, contact us at the shop or directly by email when you are ready to set up the carburetor.....Cliff

[AHotRod]

Thank you for your response Cliff.

Today I picked up a real nice #7029207

Is the 7043210 still a better unit to use ?

Glenn

[Cliff Ruggles]

They are the same in performance potential.  About the only real difference is that the 207 has small main airbleeds, and smaller upper idle airbleeds, so it will require slightly less modifications than the 210.  The choke pull-off set it is also different, but not a difference as far as performance potential is concerned.  Otherwise, they are pretty much identical carburetors. 

The 207's usually bring quite a bit more money, because they have a pretty decent idle and main fuel calibration right out of the box.  With the knowledge from our book about custom tuning, any difference between them quickly disappears.  I have one customer running an early 355cid powered Camaro going 9.30's at over 150mph with one of those style carburetors, if you are curious as to the performance potential?......Cliff

[AHotRod]

Thank You for the response Cliff !
The #207 has been the carb desired by us Stocker and Super Stock guys forever. Just when you about give up, I came across one and grabbed it. Now I can build it for my Wagon.

What fuel pressure do you recommend at the needle & seat ?
Glenn

[Cliff Ruggles]

Yep, old trends are hard to break, and has driven up the price of the 207's over the years.  That surprises me, as they have no performance advantage whatsoever over any other Chevy divorced choke carburetor made between 1969 and 1978.  Change 4 airbleeds, idle tubes and a couple of bypass air holes and any other casting is dead even with a 207, and most can be had for $5 to about $25 at swap meets.

Several ways to go with the fuel inlet seat and float.  The fuel delivery system must be adequate for the power level.  I prefer to stay slightly smaller with the inlet seat, run a small float, and then a tad more fuel pressure.  Contact us by phone or email and we can go over specifics and get you the correct parts, etc.....Cliff

[AHotRod]

Thanks again Cliff !
I'll be calling Monday, as I'm ready to get this or one of the other carbs done.
Glenn

[Cliff Ruggles]

Sounds great!  If we don't pick-up, leave a good message and we'll call you back.....thanks...Cliff