I got the Holley 4500 1050 sportsman 2 circuit carbs. I couldn't find any down side to them as they are built off of the same body as the hp gen 3 and they are polished...for $800.00 smacks. However I am certainly no carb genius!!

Norm loves aerosol carbs, he even sends a personal note in the return shipping as to his enjoyment he had working on them...........

Yes. Many times over and over, a dominator carb has proven itself over a equally rated cfm of its 4150 sibling. Look at the comparison of a Ultra HP 4150 950cfm, and the 950 Ultra Dominator. Both rated at 950cfm.

Like you said earlier, its not just the cfm rating. How the fuel is atomized, distributed, etc. If the 4150 style carbs were all thats needed for a 750hp deal, holley, quick fuel, demon, prosystems, and many others wouldnt have sold many dominators. Bck here made more power with a dominator on his 540 after swapping the 4150 carbs and what not .

Heres a good read from prosystems about this topic

https://prosystems.websitetoolbox.co...in-cfm-6223685

For sure. However, we have ran them before the daytona setups with custom timing settings at idle. It certainly helped for sure. But even prior to that, they idled very well. Heck, we have used quite a few sets of 1050-B2 carbs on roots and mike tkachs 1200hp whippled engines. Whether they were on a 900hp 540, or a 1200hp 8.3 L whipple, the jetting was very close, and the air fuel ratio curve was very flat. For some out of the box carbs, thats pretty impressive. 300hp difference in output, but almost identical jets, tells me the carbs are doing a good job at metering the fuel.

With that being said, do i think they are hands down the best carb for every application, no. And once in the boat, they need some adjusting for sure. As have most carbs ive seen, after they come off the dyno

Anyone have $1800 to burn ? Would love to see real world tests on one of these. ;)

http://www.silverbackcarbs.com/index.php

http://www.silverbackcarbs.com/images/fly1.jpg

What the??? That looks pretty cool. Looks like something from the future. Wish I had 1,800 right now let alone to burn. Lol

Very interesting design

Any of you guys follow the annual carb shootout amongst the various big names in carbs ?

Not the last one...you have a link ?

I dont know if they are still doing it anymore? Was pretty cool.

If i recall, in the 2012 one, quick fuel took first place in the out of the box class, and big block chevy class. Maybe it was aed. Ill try and find it later when im home