Carb recommendations please

[1968Droptop]

I've sent the $$$ off to start my new engine build. I'm building a 545 BBF, w/ Blue Thunder heads (stage 1 porting), Victor 460 intake (race ported to match the heads), and I have Lightning water jacketed headers. The engine will be in the neighborhood of 750 HP on premium pump gas (10.5:1 compression), and will see a 250 shot of laughing gas.
I'm looking for some carb advice. I plan on getting a Holley Dominator series carb and I thought I'd need an 1150, but was told a 1050 would work, and it'd give my better throttle response. What do you carb guru's suggest ? Is there a big difference between a 1050 and an 1150, or am I splitting hairs here ? I found this one on E-Bay,
http://cgi.ebay.com/ebaymotors/ACFI-Reman-1050-cfm-Holley-Dominator-Race-Carburetor_W0QQitemZ320029098073QQihZ011QQcategory Z33550QQrdZ1QQcmdZViewItem
a decent price I thought, but I'm looking for opinions before I spend the dough. THANKS !

[olbiezer]

i am certainally no expert but i have a 468 bbc that has a dom..1150 and runs great and no lag in the throttle.........some of these motor heads around here can help ya much more than me though :)

[TRG]

i have a new 1050 dominator for sale and will make one hell of a deal on it!
Actualy, i have two!
Todd

[Wicked Performance Boats]

Make sure it is a annular discharge Dominator. They work much better on a jetboat. Budlight

[JETBOY03]

hey chris check these guys out i have heard great things about them, im going to get my 850 dp from them. http://www.bigsperformance.com/

[atxwrangler]

wait, i've still got wood from the blue thunder heads statement! chebby exhaust flanges like mine???

[poncho-pwr]

My best advice to you is that if you are not carb savvy yourself the best thing you can do is have a pro carb shop set up your deal for you. You will be much happier in the long run. If you can get a good deal on a used carb buy it and send it to someone who knows what they are doing. I highly recommend Braswell http://www.braswell.com/index.htm , they are the best by far in my opinion.

[1968Droptop]

wait, i've still got wood from the blue thunder heads statement! chebby exhaust flanges like mine???
Yup, Bowtie ex. flanges, 100cc chambers (for pump gas application), severe duty valves, and stage 1 porting ! They match up to the Lightning Water Jacketed headers. They were an extra $500 from the guy I purchased the boat from, well worth $500 I thought !
Make sure it is a annular discharge Dominator. They work much better on a jetboat. BudlightWicked Performance Boats
I was under the impression that annular discharge flowed low cfm's ???
My best advice to you is that if you are not carb savvy yourself the best thing you can do is have a pro carb shop set up your deal for you.
That was the plan ! I know enough to stay the hell away from trying to tune one...LOL ! TOO much $$$ into this build to fry it because I was to proud to ask for some help.

[FILUCKY]

Hard to pick a carb size without knowing cam #'s and what the heads flow? What RPM? Go over to www.460ford.com and you'll get some good advise from guys that have built and dyno proven some bada$$ stroker Fords. I run a 1320 CFM on a 514, but others run a 850 DP on a 557. It all depends on your aplication. :)