My buddy races a 900 hp big block chevy dirt track car. He has a Gary Williams built 4150 1000 cfm carb that he ran once and will no longer use. I can get a good deal on it - I have a Gary Williams built Dominator I got from him some time ago and it worked very well on my race car. I am shooting to run 10.60's to 10.70's with the car. Targeting about 650 hp.

Do you think a 4150 1000 cfm carb would be a decent choice for my street/strip car with the following specs? I am not worried about the track just how it would behave on the street:

- 69 GTX
- 3800/3900 lbs
- 9 1/2 inch frank lupo converter
- 4.56 gear with 30 inch tire and gearvendors OD
- New 512 inch Mike Ware block with fully ported Side Winder heads from Todd Marsh
- cam is not yet chosen
- Mopar M1 gasket matched intake
- Other????

I'd run it.. but you will need to dial it in to
your engine and for cruise

Heck yea.
I run a 950 on my little 318, drive it everywhere. Haven't touched a plug in two years.

We have run my 4150 1000cfm on just as many track mile road miles. Great street carb.

I also run a 1250 Domintator on the street with awesome street manners.

Set them up right, and they work just fine.

Looks like a BLP main body, I have one on my 434 and it works great.

My 1000 CFM 4150's work excellent on the street. I would not hesitate to run it.

Running an AED 1000 street/strip on my '67 R/T
505
Solid flat tappet
Indy 2D
8" Dynamic
3.54 gear
Pump Gas 93
3,950 pounds
11.30's @ 118

Put about 700 miles on the street as well

I've ran Dominators on my 500" street cars for years. 1,000CFM on the street is no problem with these engines. As long as the carb is set up right. And Thumper can help with that.

What size cam are you running?

x2; the basic carb design is probably fine, but the tune is likely to be way off for a street application.

I've played with a few different setups on my 511. I've ran both a six pack and a 1050an 4150 carb that's pieced together from a proform 850 street carb. Both setups ran 10.90's on my 4g 69 runner on dot's, through mufflers, and driving to the track. I have the 1050 on an old tm6 I ported. Really runs well, it did take a few tricks to clean up the street manners. It really drives around as good or better than the six pack.

I ran a 3 circuit 1150 Dominator on the street and it ran better than 850 DP when dialed in with a large roller cam.

CFM wise no problem but the tune will determine how close it is to your needs.............

I hope not! I just switched from an 830 downleg carb to a new Annular HP 1000 on my 451 street / strip combo. Haven't ran it yet.

Holley's carb-selector tool landed on it for my combo, and a lot of guys here who's opinions I respect have suggested bigger is generally better.

Those calculators dont work for making power
bigger has always been better for me for street
or strip... its all about the amount of air

Comp XX Lobe

Hughes 1.5 Rocker

.585/.600
260@50 / 268@50
109 cl
104-105 installed

The bigger CFM carbs. only count at WOT, the rest of the time your right foot controls the CFM the motor see's, correct

You are aware that is a 1,000 cfm 4150 "3 circuit" correct?

That will take a little extra tuning...

Saying it's all about the amount of air is over simplifying things. DEPENDING ON THE COMBINATION, a smaller carb can ET & MPH better than a larger carb when it has better shift recovery.

I bolted a BLP 3 circuit 1000 to my pump gas 505.....it was borrowed from a local dyno guy I know. So, I didn't want to monkey with it too much.

However, it fouled out my plugs in less than 1/2 of idling and one short drive.

I'm sure the 3 circuit can work on the street......but like Greg said.....plan on tuning time and prob a set of plugs

Mike