I just but on a nickerson 1050 and pick up 4 plus mph over my bg 850 510 was 650hp, with 100gals of fuel. the 850 I would run with about 50gals.

I really like my 1050s massaged by Nickerson on my 540s.

I have 540na motors. I tuned mine on a dyno. They really liked the 1050 better than any other, i dont run power valves and use 94 jetting all around. I had to open the idle bleeds up a bit but they idle fine in gear at 650 rpm. I run a large solid roller 312-322, 690 lift and i use a hvh spacer. My fuel pressure is 7lbs all the time with a manual pump. My motors run between5800-6300. hope this helps you Brian

Agree with you guys that a larger carb will produce more power @ a higher rpm range. For this application and build the smaller 830 cfm to 950 cfm (max) will be alot more effecient. I have a 540 N/A carb package I do run a Holley HP 1050 on and produces 750 HP. Cubic inch is not the only factor you need to look @ when choosing a carb cfm size. We just set a Bonniville land speed record last week with a SBC 368 cu.in. engine with a 32 street roadster class. Car ran 209 MPH . Guess what size carbs I am running......? 2 - 1050 Dominators. You all have very good suggestions I may add!

Congratulations !!!

Sounds like a Pro Stock Truck motor or possibly a derivative of anyway.

Thank You! Almost one...not quite as exoctic. Funny you mentioned that class, we have done those as well! I wish NHRA never eliminated the class!

I have one of the very first BG Sea Demons that were put out. Actually ordered the carb before it was available. I was very happy with the carb as it was a definite improvement over the Holley it replaced. I've since sold the boat, but I saved the carb. I believe it's sitting on the shelf in my shop. I'd be willing to sell it for a slight discount over what I paid. I doubt if the carb has 20 hours on it.

Which one is it Cord?

I have 3 BG carbs for sale
1 is a speed demon 850 like new test only
1 mighty demon 850 with 10hrs
1 mighty marine demon with 15 hrs
Will make a good deal on one.
Bill B and Bob Marine Kinetics on OSO both no me

Mrhorsepower1/Dean....I see in the picture you have posted with the pair of orange marine engines that they have the KE valve covers with the wingnut type thumb screws for easy removal. I wanted to go with those, but was told they leak oil a lot,.....but then I have also heard that they have remedied that problem with some design changes recently. Could you give any insight on your experience with them please...i.e oil leaks, etc? Thanks, Mark