Going to be switching to 4500s. Builder is partial to Quick Fuel. I notice Holley has dedicated marine 4500s and the newer Gen 3 styles. Any opinions ? What would you recommend? 540s 700hp. Figuring 1050s

AED is always my first choice.

Not familiar with them. Any particular model I should check out?

quick fuels are nice!

The Holley Marine Dominators are excellent. Best carbs I have ever tested. The 1050 should be perfect for 700 HP.

Do you know what makes it "marine"? How bout the Gen 3 models ?

AED, Holley and Quick Fuel all make a good carb that would get the job done. AED does offer some extra services with their carbs they do wet flow them for your application along with CNC porting options. They are usually bolt on adjust idle carbs. Maybe have to change main jets to get AFR's exactly where you want them. By no means nightmare carbs that have a problem flowing fuel because the emulsion jetting is all messed up like a lot of other carbs on the market. Holley and Quick fuels are pretty much the same right out of the box. All three offer Marine Carbs. I really don't see any advantage one has over the other two for your application. At this point if you builder likes Quick Fuels has an account with them and doesn't mind passing some of his savings on to the customer that's what I would go with. But the same would go for the other two carbs mentioned. I would go with the one I could get the best deal on. And me personally if I was building a 700hp motor I would not be using a Dominator to do it. Will it make a couple extra hp? Possibly. But I think a properly built 4150 would do just as well maybe even a little better and a 4150 Carb is a lot cheaper than a Dominator. Now if you really wanted to get trick you could spend the Dominator money on a custom 4150 and end up with 20-30 more horsepower for a finished product. But you have to ask yourself in the end is it really worth it?

quickfuels are about the best I've used, their adjustability is great...tech help awesome as well...

We did test with a 4150 as well. The dominator pretty decisively out performed it. The 4150 was a Pro Systems with a 1000 cfm body. If static draw is an indication of actual flow they were 900 cfm actual. I know not everyone is a fan of theirs but that's what I had. We tested a few combination of intakes and carbs. Every change gained some hp, it's tough to know where to draw the line. Engines are 548 with 305 heads. Power ranged from 674-706 depending on intake/ carb combos.

My advice, go with a quick fuel, or holley gen 3. Tune your own carb on the water using a wideband and plug readings.

Skip the concept of these guys who claim they can set you up with a carb that will be perfect out of the box in your BOAT. Go with a carb that has nice hardware and features. Theres still plenty of shops out there selling used up modified/hacked old holleys.

I can tell you who to stay away from, in my opinion, and thats

Nickerson
Lance Patten