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Author Topic:   Two Barrel Selection
rireland
Member
posted September 26, 2002 02:36 PM
I am building a street stock and have to run a two barrel carb. I have a 500cfm holley. Are there any bigger two barrels I can get my hands on??? The motor I will be running will be a stroker so I need all the CFM I can muster.

Suggestions appreciated.


tilley88
Member
posted September 26, 2002 07:54 PM
See if you can locate a Holley 650 Aerosol carb. List # is 6425. Call Kinetic. Dayton may be able to hook you up.


sixwillwin
Member
posted September 26, 2002 10:39 PM
C&S 890. A true 750+ CFM. Based on a 4412 or 6425 core. Around $800 new.


KPLugnut
Member
posted September 27, 2002 05:15 AM
Yes, the above info is correct. As long as there ain't no rules, a radically prepared 2bbl is the way to go. A 6425-based unit that flows over 750cfm is available from us or other builders.
There's also the option of a "split" dominator style 2bbl, that is, if there are NO rules other than it has to be a 2bbl carb.
A split dominator can be built to flow a TON.
It's also way more carb than most guys need, tho, for circle track use unless they're on a VERY long track where top end is the ticket, and not necessarily bottom end or crisp, quick throttle response.
They're mostly used in drag racing, too.

Anyway, a heavily reworked 4412 from us will flow over 650cfm and still be crisp and quick off the corners.
A stock 6425 that we've blueprinted will almost be the same thing, but will flow a slight bit more, and an extreme "outlaw style" 2bbl will be right up there with any other big carb shop's best piece.

Just choose yer poison, and we'll be glad to help...but keep in mind, the winning car won't JUST have a nice carb on it. It's all about the WHOLE combination from air cleaner to oil pan, not to mention the fact that nothing will make up for an ill-handling chassis.
We always tell our customers to remember there's only TWO straights, there are FOUR corners to ge thru...LOL!

Hope that helps,

Dayton Umholtz, aka KPLugnut
Kinetic Performance http://www.kineticperformance.net

[This message has been edited by KPLugnut (edited September 27, 2002).]

sixwillwin
Member
posted September 27, 2002 07:52 AM
KP is right on also and knows his stuff. My 890 is not quite as good right out of the corners as a bit smaller fully prepped Holley is. I have run ALOT of Holley 2 barrels over the years and all I can say is get a GREAT one from a professional builder(like KP or others). Spend alittle extra on the carb, they dont blow up with the motors and they can last almost forever unlike every other part on your racecar. A GOOD one is simply bolt on HP. Peace and Love.... sixwillwin


KPLugnut
Member
posted September 27, 2002 08:44 AM
You're right on, Six....a good one is low maintenance bolt-on HP...a bad one is a DOORSTOP. LOL!....Anybody want a doorstop? I got a few here in our "experience pile"...:-)

KPLugnut

rireland
Member
posted September 27, 2002 02:23 PM
Thank You All For Your Input. I'll be having KP set one up for me.

Thanks


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