Haha, yes, I'd say that's a Carbphile.
It does feel nice. Nice sharp lines. It just feels "new tech". Plus, it's so much lighter. I bet it's an honest 5 pounds lighter than the 465. (Not that it makes much difference on this engine as far as performance goes, but it is kinda cool knowing I don't have that extra weight slamming down on the intake when I go off-road.)

I got an adjustable metering block for Christmas so decided to use it instead of the stock one. The stock one was adjustable, but figured this was already a performance piece with billet aluminum and a few other bonuses, so I put it on in place of the original. I love it with the black. The black coating also reduces the temperature of the carb (they claim 6%).






The primary jets are a 56 (as opposed to the 57s on the 465) and the secondaries are a 60.

I think you'd love one! It's just like the 465, but it's just so crisp and sharp, especially with every piece of it being fresh off the mint.

 

I'b be curious to know if your cold-running issues disappear with the new carburetor in place?

 

Completely jealous! I'm still curious as to how a 450cfm mechanical secondaries would perform on our engines.

 

I'm not sure yet. It was starting to disappear on the other one as we've had 40 degree mornings the last week, so I haven't had a chance to see if it reoccurs. However, we're supposed to be getting a cold snap here for the next few I'll be able to see. I'm curious too. I sure hope so.

HR-Series Carburetor 450cfm HR-450 - Quick Fuel Technology

You'll just have to try it.
Come on... you know you want to...

 

I do I really doooo! Lol but I gotta try this 470 cfm when I get tired of it that QuickFuel is next on the list!

 

There's a couple things I wanted to mention. First of all, I think AB officially killed this thread. RIP, dearly loved 1848.

Oh, I thought I read somewhere that the 1848 had come oem on some 1950's fords. So, AB, it was actually designed in the 50's, not the 60's as you mentioned. Just messing with you.

I was wondering, the linked carb was m.secondary, but yours is v.secondary, right?

 

Do you guys know a calculation to figure how many cfm a engine will need as a startingpoint? I'm building a stroked 460 with twin carb tunnel ram

 

How is that 470? I think way back when I first started on the 4bbl adventure, that was the first carburetor that I looked at. I loved the off-road features it had (which are some things that I think I'm going to add to this QF). Eventually, it was the Holley rep that told me that it "wasn't calibrated for gas mileage" that scared me off. That was back when I got 22mpg and I didn't feel like losing that. Then I went with the 390cfm and my gas mileage dropped to 11. Good thing I played it safe.

Yes, I think it's done. Haha. As I said, it definitely gets my vote! And I learned a ton while using it (first is that a 'perfect' carb can almost be found).

Holley 4160 Adjustable Float Carburetors 0-1848-1 Application Guide

Looks like you're right.
I think my numbers were coming from the few I saw on eBay and they were saying what year they pulled them off of. Usually around a 61 - 62.

That was just for FordBoy. He was saying he was curious how a QF with mechanical secondaries would work, so I posted up the MS model. Mine has vacuum secondaries. I don't think I'd ever want to mess with mechanical secondaries.

It's pretty straightforward.

(Engine CI * Maximum RPM) / 3456

If you have a 460 and have a peak RPM of around 5500:

(460 * 5500) / 3456 = 732cfm

Granted, it depends on what you want to do. That's at full, open throttle, which you don't exactly do all the time. The smaller the carburetor, the better the throttle response. The larger, the more top end, full open throttle breathing you have. If you're not going for maximum horsepower, a smaller carb is better. However, on the flip side, it doesn't hurt if you get a carb that's bigger than you need. I had a 600cfm on my 300 (which let's it breath up to a whopping 7000RPMs), and it did quite alright.

So, for you, I'd say:
600 - 650cfm if you want snappy throttle, torquey grunt.
750cfm if you want a good, middle, all around carb.
850 if you want a full throttle performer.

However, if you want to open a more detailed discussion about it, please start a new thread as it would derail this one.

 

"...how a 450cfm mechanical secondaries would perform on our engines."

Literally, it's all in your foot.

 

Well, it was a frosty, windshield scraping 25° out this morning and the carb idled at 12 AFR and was around 13 - 14AFR on the interstate. So it doesn't seem like it persisted with this carburetor. Begs the question what was causing it.

 

"The black coating also reduces the temperature of the carb (they claim 6%)."

Back in the day it was rumored painting the intake manifold on a SBC black was good for 20 HP.

"I'm still curious as to how a 450cfm mechanical secondaries would perform on our engines. "

Fine if it's tuned well and better with a manual transmission than automatic.

 

Oh, that new carb is pretty and all, but Edelbrock FTW.

 

I must've missed this. I actually drove it normally yesterday for the first time. I like that it has a second metering block I dont know what its for but I like it since the throttle cable is finally opening my carb all the way now. It was actually the first time I took it out since I had it adjusted.

 

Mine is shiny

 

any coating on a metal surface would slow the cooling of it, im pretty sure thats a lie they are telling but it looks great anyhow.