Ron:

At the beginning of this thread, you stated that the Holley lacked top end power.  Just a thought.  Are you sure the secondaries were opening?

John - "The Hoosier Hurricane"

Hey Ron, I'm running a 272, I had the large valves installed, an rv cam, pertronix with the flamethrower coil, plugs gapped at 40, a 57 intake and the 465. Put it on and right from the box it was good, just a couple miner adjustments on the idle circuit and it's been go ever since. I had a Holley 600 on it, when I wen t to check on the metering block it was dissolving right in my hand, that was the cause of all mt problems. When I contacted Holley they knew what was going on, some bad metallurgy on some of there units. They would exchange it for another and when I mentioned y-block they immediately said 465, they also mentioned the 390 but they thought the 465 might be a little better in my application. Great guys to work with.

       

Gary, 55 Vicky, St. Germain, Wisconsin

 

Really, that was from Holley direct?  very interesting.  Ive talked to the tech at Jegs, and used the holley on line carb selector, and both came up with the avenger 570.  Actually, the carb selector thingy came up with the 390 or the 570, but never the 465.  Looks like I should give them a call, huh?

I like the idea of the 465 due to its being physically smaller, and having a single inlet.  I do wish it had jettable secondaries, but oh well.  Im also concerned that the 465 wont flow enough at top end vs. the 570, but I guess there is no way to know between the 2 other than to try them.....

Gary, what kind of mods do you have on your car?  Did it require some jetting/power valve, etc adjustments?  Thanks!

Ron Grove

Wauconda, IL

While talking to the Holley rep about card size and that the 600 I had on wasn't doing the job, as soon as I mentioned the y-block he said the 465 was what I needed. A direct replacement on 57 and later y's. It's not seen in the speed shop listings and not on the shelf at the local parts stores but it's a very good carb and sized right for stock or a little engine mods as I have on mine. Gary

       

Gary, 55 Vicky, St. Germain, Wisconsin

 

Steve, i too have had more expeirence and results with the holley 4bbl carbs, theres years of learning how to tune them to the parameters of the engines output, not merely adjusting float levels and air bleed screws. I guess its up to the individuals expeirence on any of the carbs. Holleys for me.

  AussieBill            YYYY    Forever Y Block     YYYY

 Down Under, Australia

A reason the 465 cfm is a good fit for the Y-blk is that it has the correct Ford with automatic linkage. And is also roughly the same cfm as the original carbs used on 56 292's & on 312s. As a side note, a buddy in the last year put a new 4160 -600 cfm on his 289 Mustang. He's very unhappy with it. Says it has poor throttle response & lousy mileage. And in Ted's recent 4 Bbl carb tests on a stk headed engine, the 465 scored very well overall. However, it's a street carb not intended for racing. Also for what it's worth, Pony carburetors literature says that a 600cfm on a 300" or less street engine is unsuitable..

Paul

You probably will not be able to mount the coil in the stock orientation but you will be able to mount it close enough that all of your wiring should work. You will probably need a different bracket. Ford Racing part # M-12044-A2 does the job.



I don't have a clue about the oil bath.






Lawrenceville, GA

Hi Ron

I have been running a 465 Holley R-1848 on my 292 with B manifold for the last 17 years and have always been happy with its performance.

A variant of this carb was fitted to 1960 332 and 352 so it is no great stretch to see that it is probably spot on for a Y Block.

If you want WOT performance go with the 1850 (600) Holley. I am sure you will find these at a local swap meet. I put an 1850 on my 292 when I took it down the strip once and it certainly went better but for general streetability the 1848 is the better choice.

Hope this gives you some more insight.

Regards

Rick - West Australia
Do Y Blocks Downunder run upside down? Gravity Sucks!!

Thanks guys for all the comments thus far!  Im leaning towards the avenger 570 right now, but ill have to do some more reading.  The carb selector on holleys web site recommend either the 390 cfm or the avenger 570.  The 465 never came up; not sure if it was due to cam selected or what?

Gary, on the 465, where did you hear that it was "made for the Y-Block?"  Id never heard that before, so Im curious as to the source.  i wonder what that means, anyways?

Also, with the 570 avenger, do the larger bowls fit ok with the stock coil loc and oil bath air filter?  ( have about a 1/2" spacer under the oil bath to give some more clearance, but the bowls on the dual inlet carbs are huuuugggee compared to the demon jr or holley 390; the oil bath has been gutted, but still looks/is dimensionally stock for appearance)

Thanks!

Ron Grove

Wauconda, IL

I've got no experience with the Carter / Edelbrock style of carb and probably won't ever buy one (myself). The "Thunder" versions with the tunable air door for the secondary might work for someone with patience. Sounds like your 500 version was just plain over-rich and didn't get better with age.

Holley's (or the Demon derivatives) have always worked out to my liking - tuning parts and knowhow has always been available....and over a 40 year period. If you are dead set against the Demons - Charlie's comments about the Avenger 570 sound right to me - and they have the big bowls and sight windows I believe.

Anything that has "non-adjustable bowls" must be for children.......   

 
 Steve Metzger       Tucson, Arizona