Looking to purchase a new,or good used Holley 950 or 1000cfm carb for my .040 over 440. Any suggestions would be appreciated! Currently run a "borrowed" 850 that Mr. P-Body modified a bit! Thanks in advance! RandyB

Randy,
I am very happy with how my Bigs 950 runs, he is also great to talk with and will spend as much time as you wish covering tuning. He also answers the phone. i did run an 8082 Holley as per the Holley tech line recommendation. they are pretty cheap and I had it running pretty well on the street.
I would still just call Jesse

Thanks Josh! Did you ever try out the Mighty Demon yet???

No,
I have it all set up and ready to go. I put it pretty close back to stock and it is currently sitting in my garage. I have been super busy with finishing the remodel on my house and work. I took a promotion that is going to bring me out west. The car and the carb are both going and I hope to run them at Famoso in the future!

I can't wait t try the annular boosters but I will say I was reluctant to take apart my Bigs, it is that clean of a carb.

Josh..if you don't mind me asking,how much did the Bigs 950 set ya' back? My budget won't allow for a $700.00+ carb! I'm looking for something closer to 500-600 tops! That's why I stated "used" also!

Why not the nice Quick Fuel 1050 in the for sale section? Asking price on it is $600. I bet it would work well on your engine, I know my 434ci. small block sure likes the 1050 better than the 850 that is currently on it.

-Kenny

Kenny..you think it would work well enough on a street-driven car? I hear 1050's run a little rich idling in traffic! Sounds like a good price for a dominator! Thanks! RandyB

I have dyno tested and raced several of the Holley 950 HP, which actually only flowed 880 CFM on a super Flow flow bench, on several cars and motors, all of them worked very well I have seen more HP on a engine being dyno tested using a 850 BG Speed Demon(flowed 910 CFM on the same flow bench the same day as the Holley 950 HP and another BG Mighty Demon 850 with annular boosters, the Mighty Demon did not flow as much as the Speed Demon did that day on that bench also I'm sure the annular boosters contributed to that I dnyo tested both BG 850 on the same motor within twenty minutes of each other with no other changes using the same gasoline and oil and water temps to keep the test accurate. both carbs. had the stock jetting in them, the Speed Demon made more HP and torque that the Mighty Demon did The standard Holley 850 DP usually flow 900+ CFM stock with the choke plate removed I have several of them(used ones with new kits in them) in stock. If you want to try one PM me

Yeah, I drove mine around with the 1050 a fair bit. It did street drive like a turd, HOWEVER there is something in that 1050 I just can't find!! It is not the fact that it is a dominator. I have tried it on other engines on the dyno and it does the same thing. It has a dead spot anywhere under 4000rpm. This is why I have the 850 on the car right now... this is also why I ended my race season with an 11.05 and not a 10 second pass LOL!!

The 1050 made 25rwhp more pretty much EVERYWHERE over my 850. But the car just didn't launch with the 1050 this year. SO, I have all winter to scratch my head and inspect this 1050.

So, long story short, my 1050 sucks unless it is over 4000rpm and at WOT. I was even thinking of buying that Quick Fuel 1050, and giving my 1050 the cold shoulder.

I think I am going to save my pennies over winter and buy the new Pro Systems SV1. So feel free to snatch that QF up!

-Kenny

I think I paid $400 for mine maybe it was $500 I bought it used from the swap section, Jesse still helped me set it up for my car even though I didn't buy direct from him. He wants like 639 for a setup carb either 850/950, I think thats good for a carb setup for your car.


http://www.bigsperformance.com/productpage.htm

I bought my Bigs 950HP off e-bay for $400, it looked new. Jesse gave me a base line set up for it that was almost spot on, great service .

Randy, just go out and buy a box stock Holley 850 with Annualer boosters, and jet as needed. You will be money ahead, and have a carb that works.

Jeff

Cab - Have you done back to back test between the 950 hp and one of your 850 DP with the choke removed?

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No I haven't , when I did that test I didn't own a 850 with the choke removed. I do now along with a bunch of other Holley carbs.

Sunday morning

I don't know if this helps w/ your question, but figured I'll throw it into the mix. My experiences have been w/ different carbs on my 440:
1. A Holley "950 HP" was good enough to get my car down to the 11.0s. Nice carb, even though Holley claims a bogus flow #. My experience mirrors others I've heard about how they improve 60 ft & ET compared to a traditional 850 because the smaller venturi (1.375") is more responsive and recovers better after big RPM changes after shifting.

2. My Claw configured w/ 1.42" venturi & downleg boosters (what BG calls an 825) was worth 5-8 HP over the Holley "950 HP" on the dyno. The Claw was also quicker & faster on the track by about .05 / .5 MPH. Jetting is different from the OOB settings courtesy of dyno time w/ PRH.

3. When I configured the Claw w/ 1.56" venturi and annular boosters, it didn't run any faster on the track (not sure if it actually ran slower, though) and ran worse on the street 'cuz this combination pulled too much fuel at lower RPMs. I've found this is a common complaint about annular booster carbs on big-block engines and doesn't "tune out" easily. If I try the annulars again, it'll be w/ a 1.59" venturi.

4. I haven't had a chance to try a 1.56" venturi / downleg booster combination. My concern is that this may loose too much booster signal and soften the car's 60-ft. compared to the smaller venturi config.

Know anybody w/ a Holley "950 HP", Quick Fuel 950 or Proform 950 (1.45" venturi, IIRC) you can borrow? If you're limiting your choices to what you can find used because of budget, IMO you really need to be able to test before you buy to make sure the carb you end up with is actually an improvement over whatever you have now. BTW, what do you have now, other than the borrowed Holley from Mr. P?

Brad,I currently do not have my own carburetor! I sold my old 850 Mighty Demon to a board member last year! I could never get it to run clean at an idle! Another board member is sending me a Bigs 950 to try out,and purchase..if I like it! Also,Cab is sending me a modified 850 Holley to try out,and purchase as well!So... got a little carb work coming up soon! I REALLY DO APPRECIATE all your input! You've been very helpful to me in the past! Also..I'm having good results with the Rancho's you sold me a while back! Thanks again! RandyB