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Carb sizing

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dfree383
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Carb sizing Empty Carb sizing

Post  nedceifus February 3rd 2022, 12:15 pm

Did a search & went back 1/2 dozen pages…
466, 11.1, 242/248 solid roller, TrickFlow 290’s. Just putting this back together with different heads & cam. Currently it has a 4150 Victor & a 850 Race Demon. Contemplating selling the intake & finding a Dominator Victor & a Dominator. Or, I could try a 950, or, I can keep using the 850, but I have a feeling it will not be enough.
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Post  gt350hr February 3rd 2022, 1:56 pm

Dominator will do the trick . 950HP is still not enough.

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Post  dfree383 February 3rd 2022, 6:13 pm

A 1050 will be the ticket

An old 8896 is a work horse for the money
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Post  rmcomprandy February 3rd 2022, 10:28 pm

dfree383 wrote:A 1050 will be the ticket

An old 8896 is a work horse for the money

That part number is certainly a work horse as there are 4 different versions of that L8896.
The first version has press-in bleeds and bar type boosters so, be careful with just part numbers.

In any case it is a 3 circuit but, the intermediate circuit is very lean on most versions.

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Post  nedceifus February 4th 2022, 12:18 am

Are square flange 1050’s stupid?
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Post  rmcomprandy February 4th 2022, 5:44 pm

nedceifus wrote:Are square flange 1050’s stupid?

Hardly ... they can work very well.

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Post  dfree383 February 6th 2022, 9:31 am

rmcomprandy wrote:
nedceifus wrote:Are square flange 1050’s stupid?

Hardly ... they can work very well.

But the dominators always seem to make more power
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Post  nedceifus February 8th 2022, 1:25 pm

Do what part # 8896 do I look for?
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Post  nedceifus February 8th 2022, 5:11 pm

Carb sizing 53da3510
Carb sizing Acd0fe10
Pro systems is trying to sell me a 1000cfm 4150
AED is trying to sell me a 850HO AN

I don’t get it. These are 2 completely different carbs?
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Post  wickettoby1 February 8th 2022, 8:38 pm

Tell them each to send you one for free and which ever works better you will pay for and send the other back 😂

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Post  t-bird racer February 10th 2022, 11:42 pm

My first race engine was close to your specs.  I called Patrick at pro systems and I bought the 4150 950.  It ran very well and the carb was very consistent.
I blew that motor up, the second motor was pretty much the same spec wise.  it was a flat top motor with a comp roller lifter cam.  After the build was complete
it was put on the dyno.  it made 721 hp with the Pro System 4150.  I swapped out the intake on the dyno with a dominator flange intake with the ports gasket matched. I borrowed a Pro Systems 1150 that my engine shop had for the dyno.  The new combo made 787 hp @ 6900.

The engine loved the dominator and the engine just seemed to come to life with the increased breathing.  The carb never was removed from the engine.  
I bought the dyno Carb and and it came home  with me.
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Post  Mark Miller February 11th 2022, 11:18 pm

t-bird racer wrote:My first race engine was close to your specs.  I called Patrick at pro systems and I bought the 4150 950.  It ran very well and the carb was very consistent.
I blew that motor up, the second motor was pretty much the same spec wise.  it was a flat top motor with a comp roller lifter cam.  After the build was complete
it was put on the dyno.  it made 721 hp with the Pro System 4150.  I swapped out the intake on the dyno with a dominator flange intake with the ports gasket matched. I borrowed a Pro Systems 1150 that my engine shop had for the dyno.  The new combo made 787 hp @ 6900.

The engine loved the dominator and the engine just seemed to come to life with the increased breathing.  The carb never was removed from the engine.  
I bought the dyno Carb and and it came home  with me.

So with the Gasket Matched Dominator Flange Intake and Pro Systems 1150 you picked up 66 Horsepower over the Pro Systems 4150 Carb if so Very Impressive?FWIW i put a 1/2" 4150 to Dominator Adapter on my Victor Intake with a Quick Fuel QFX-4700 on my 466 and seat of the Pants says it picked up a nice power gain over the 1,000 HP 4150 carb i had on it before!!FWIW i have a Dominator Flange Victor that's Gasket Matched to CJ Port Size i have Aluminum Ford Racing CJ Heads!!

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Post  nedceifus February 12th 2022, 1:09 pm

God damnit! That is NOT what I wanted to hear!🤣 But, thank you for sharing! I just ordered a 1000cfm AED from Summit. I wanted a Pro Systems 4150 but they only build them in black or silver. This is a “retro” build & I had to have a traditional looking Holley. I’m just so leary about my capability’s in tuning a Dominator to run on the street, & down the track. My goal is a race week car. I want a freaking Dominator!!!
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Post  wickettoby1 February 12th 2022, 3:43 pm

If you understand how they work there shouldn’t be much of a difference in tuning a 4150 vs a 4500. I’m definitely not the “carb whisperer” so personally I stayed with a 2 circuit Dominator vs going with a 3 circuit.

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Post  rmcomprandy February 12th 2022, 6:47 pm

It was probably about 15 years or so ago that Bill Mitchel offered a 1050 Dominator carburetpr with basically a 2 circuit, L8082 primary with a 3 circuit, L9375 secondary side; used for supposedly the optimum street/strip carburetor.

You can get a 1050 Dominator modified like that from several different carb modifier sources, if you talk with them to build you something custom.
It probably won't be cheap, though.

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Post  dfree383 February 12th 2022, 11:29 pm

Just got a price for a Pro systems 1050 dominator for my 528 Hemi and Patrick’s pricing is pretty good.
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Post  nedceifus February 13th 2022, 10:03 am

I’m going to try this AED 1000cfm 4150 for now. If I find a good used Dominator I may eventually make the switch. The difference for me right now is price. A pre tuned 4150 is cheaper. I’ll learn as I go. When the big cubic inch bottom end becomes a reality I’ll switch to a 4500
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Post  nedceifus February 13th 2022, 10:05 am

I will say that if I ever have to send a carb in for work, it will go to ProSystems. Patrick is fast in replying to emails & took the time to explain a few things to me.
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Post  nedceifus February 13th 2022, 10:06 am

Carb sizing Bec6ae10
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Post  Mark Miller April 3rd 2022, 11:03 pm

t-bird racer wrote:My first race engine was close to your specs.  I called Patrick at pro systems and I bought the 4150 950.  It ran very well and the carb was very consistent.
I blew that motor up, the second motor was pretty much the same spec wise.  it was a flat top motor with a comp roller lifter cam.  After the build was complete
it was put on the dyno.  it made 721 hp with the Pro System 4150.  I swapped out the intake on the dyno with a dominator flange intake with the ports gasket matched. I borrowed a Pro Systems 1150 that my engine shop had for the dyno.  The new combo made 787 hp @ 6900.

The engine loved the dominator and the engine just seemed to come to life with the increased breathing.  The carb never was removed from the engine.  
I bought the dyno Carb and and it came home  with me.

I forgot to ask before but what cubic inch was the engine you're talking about above?

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Post  nedceifus April 5th 2022, 4:11 pm

466
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Post  Mark Miller April 5th 2022, 10:00 pm

nedceifus wrote:466

I was asking T-Bird Racer what cubic inch his engine was it sounds like he meant 466 but not sure!!

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Post  nedceifus April 6th 2022, 5:49 am

My bad, Roger
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Post  Mark Miller April 6th 2022, 10:35 pm

nedceifus wrote:My bad, Roger

It's all good!!

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Post  dfree383 April 7th 2022, 6:37 am

nedceifus wrote:Do what part # 8896 do I look for?

Current one that’s available new it’s the HP version
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